Copyright © 2016 YEALINK NETWORK TECHNOLOGY CO., LTD
Copyright © 2016 Yealink Network Technology CO., LTD. All rights reserved. No parts of
this publication may be reproduced or transmitted in any form or by any means,
electronic or mechanical, photocopying, recording, or otherwise, for any purpose,
without the express written permission of Yealink Network Technology CO., LTD. Under
the law, reproducing includes translating into another language or format.
When this publication is made available on media, Yealink Network Technology CO.,
LTD. gives its consent to downloading and printing copies of the content provided in this
file only for private use but not for redistribution. No parts of this publication may be
subject to alteration, modification or commercial use. Yealink Network Technology CO.,
LTD. will not be liable for any damages arising from use of an illegally modified or
altered publication.
THE SPECIFICATIONS AND INFORMATION REGARDING THE PRODUCTS IN THIS GUIDE
ARE SUBJECT TO CHANGE WITHOUT NOTICE. ALL STATEMENTS, INFORMATION, AND
RECOMMENDATIONS IN THIS GUIDE ARE BELIEVED TO BE ACCURATE AND PRESENTED
WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED. USERS MUST TAKE FULL
RESPONSIBILITY FOR THEIR APPLICATION OF PRODUCTS.
YEALINK NETWORK TECHNOLOGY CO., LTD. MAKES NO WARRANTY OF ANY KIND
WITH REGARD TO THIS GUIDE, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
Yealink Network Technology CO., LTD. shall not be liable for errors contained herein nor
for incidental or consequential damages in connection with the furnishing, performance,
or use of this guide.
Hereby, Yealink Network Technology CO., LTD. declares that this phone is in conformity
with the essential requirements and other relevant provisions of the CE, FCC.
You can find the CE and FCC information from the label on the back of the IP phone.
This device is marked with the CE mark in compliance with EC Directives 2006/95/EC and
2004/108/EC.
This device is compliant with Part 15 of the FCC Rules. Operation is subject to the
following two conditions:
1. This device may not cause harmful interference, and
2. This device must accept any interference received, including interference that may
cause undesired operation.
Note: This device is tested and complies with the limits for a Class B digital device,
pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable
protection against harmful interference in a residential installation. This equipment
generates, uses, and can radiate radio frequency energy and, if not installed and used
in accordance with the instructions, may cause harmful interference to radio
communications. However, there is no guarantee that interference will not occur in a
particular installation. If this equipment does cause harmful interference to radio or
television reception, which can be determined by turning the equipment off and on, the
user is encouraged to try to correct the interference by one or more of the following
measures:
1.
Reorient or relocate the receiving antenna.
2.
Increase the separation between the equipment and receiver.
3.
Connect the equipment into an outlet on a circuit different from that to which the
receiver is connected.
4.
Consult the dealer or an experience radio/TV technician for help.
To avoid the potential effects on the environment and human health as a
result of the presence of hazardous substances in electrical and electronic
equipment, end users of electrical and electronic equipment should
understand the meaning of the crossed-out wheeled bin symbol. Do not
dispose of WEEE as unsorted municipal waste and have to collect such
WEEE separately.
We are striving to improve our documentation quality and we appreciate your
feedback. Email your opinions and comments to DocsFeedback@yealink.com.
Yealink SIP-T48G IP phone firmware contains third-party software under the GNU General Public
License (GPL). Yealink uses software under the specific terms of the GPL. Please refer to the GPL
for the exact terms and conditions of the license.
The original GPL license, source code of components licensed under GPL and used in Yealink
products can be downloaded online:
http://www.yealink.com/GPLOpenSource.aspx?BaseInfoCateId=293&NewsCateId=293&CateId
=293.
About This Guide
Thank you for choosing the SIP-T48G IP phone, an ultra-elegant Gigabit IP phone which
is exquisitely designed to provide business telephony features, such as Call Hold, Call
Transfer, Busy Lamp Field, Call Recording, Multicast Paging and Conference over an IP
network. It also features an enhanced user experience and newly developed industrial
designs, with a large touch screen for easy and efficient use.
This guide provides everything you need to quickly use your new phone. First, verify
with your system administrator that the IP network is ready for phone configuration. Also
be sure to read the Packaging Contents and Regulatory Notices sections in this guide
before you set up and use the SIP-T48G IP phone.
Note
Network Directory and Network Call Log features are hidden for IP phones in neutral
firmware, which are designed for the BroadWorks environment. Please contact your
system administrator for more information.
Topics provided in this guide include:

Chapter 1
Overview

Chapter 2
Getting Started

Chapter 3
Customizing Your Phone

Chapter 4
Basic Call Features

Chapter 5
Advanced Phone Features
This section describes the changes to this guide for each release and guide version.
Major updates have occurred to the following sections:

Icon Instructions on page 3

Optional Accessories on page 14

Phone Installation on page 16
v
User Guide for the SIP-T48G IP Phone

Entering Data and Editing Fields on page 27

Troubleshooting on page 209
The following section is new:

Wi-Fi on page 84
Major updates have occurred to the following section:

Bluetooth on page 77
The following sections are new:

Shared Call Appearance (SCA) on page 178

Bridged Line Appearance (BLA) on page 195
Major updates have occurred to the following sections:

Icon Instructions on page 3

LED Instructions on page 8

Web User Interface on page 9

Call Forward on page 134
The following section is new:

Phone Lock on page 39

Emergency Number on page 110

Short Message Service (SMS) on page 201
Major updates have occurred to the following sections:
vi

Icon Instructions on page 3

User Interfaces on page 8

Bluetooth on page 77

DSS Keys on page 84

Anonymous Call Rejection on page 155

Intercom on page 166

Multicast Paging on page 169
About This Guide

Appendix A - Time Zones on page 223
The following section is new:

Optional Accessories on page 14
Major updates have occurred to the following sections:

DSS Keys on page 84

Appendix A - Time Zones on page 223
The following section is new:

BLF List on page 159
Major updates have occurred to the following sections:

LED Instructions on page 8

Ring Tones on page 43

Anonymous Call Rejection on page 155

Multicast Paging on page 169

Troubleshooting on page 209

Appendix A - Time Zones on page 223
Major updates have occurred to the following sections:

Documentations on page 11

Packaging Contents on page 13

Phone Installation on page 16

Contact Management on page 45

Placing Calls on page 116
vii
User Guide for the SIP-T48G IP Phone
viii
Table of Contents
About This Guide ............................................................. v
In This Guide ............................................................................................................... v
Summary of Changes ................................................................................................ v
Changes for Release 80, Guide Version 80.95 ........................................................ v
Changes for Release 80, Guide Version 80.80 ....................................................... vi
Changes for Release 80, Guide Version 80.60 ....................................................... vi
Changes for Release 80, Guide Version 80.20 ....................................................... vi
Changes for Release 73, Guide Version 73.40 .......................................................vii
Changes for Release 73, Guide Version 73.16 .......................................................vii
Changes for Release 72, Guide Version 72.10 .......................................................vii
Table of Contents ............................................................ ix
Overview ......................................................................... 1
Hardware Component Instructions .......................................................................... 1
Icon Instructions .......................................................................................................... 3
LED Instructions ........................................................................................................... 8
User Interfaces ........................................................................................................... 8
Phone User Interface ................................................................................................. 8
Web User Interface .................................................................................................... 9
Documentations ........................................................................................................ 11
Getting Started .............................................................. 13
Packaging Contents ................................................................................................. 13
Optional Accessories ............................................................................................... 14
Phone Installation ..................................................................................................... 16
Phone Initialization ................................................................................................... 19
Phone Status ............................................................................................................. 20
Basic Network Settings ............................................................................................ 21
Registration ............................................................................................................... 24
Touch Screen Display ............................................................................................... 24
Navigating Menus and Fields ................................................................................ 26
Entering Data and Editing Fields ............................................................................ 27
Customizing Your Phone ................................................ 31
ix
User Guide for the SIP-T48G IP Phone
General Settings ...................................................................................................... 31
Wallpaper.................................................................................................................. 31
Backlight .................................................................................................................... 33
Contrast ..................................................................................................................... 34
Language .................................................................................................................. 34
Time & Date ............................................................................................................... 35
Administrator Password .......................................................................................... 38
Key as Send .............................................................................................................. 39
Phone Lock ................................................................................................................ 39
Audio Settings ........................................................................................................... 42
Volume ....................................................................................................................... 42
Ring Tones ................................................................................................................. 43
Contact Management ............................................................................................. 45
Directory .................................................................................................................... 45
Local Directory .......................................................................................................... 47
Blacklist ...................................................................................................................... 65
Remote Phone Book ................................................................................................ 67
Call History Management ....................................................................................... 70
System Customizations ............................................................................................ 74
Headset Use ............................................................................................................. 74
Bluetooth ................................................................................................................... 77
Wi-Fi ........................................................................................................................... 84
DSS Keys.................................................................................................................... 89
Account Management ........................................................................................... 101
Dial Plan .................................................................................................................. 104
Emergency Number ............................................................................................... 110
Live Dialpad ............................................................................................................ 111
Hotline ..................................................................................................................... 112
Basic Call Features .......................................................115
Placing Calls ........................................................................................................... 116
Answering Calls ...................................................................................................... 118
Ending Calls ............................................................................................................ 120
Redialing Numbers ................................................................................................. 120
Recent Call In Dialing ............................................................................................. 120
Auto Answer ............................................................................................................ 122
Auto Redial .............................................................................................................. 123
Call Completion ...................................................................................................... 125
Recall ....................................................................................................................... 126
Call Mute ................................................................................................................. 127
Call Hold/Resume ................................................................................................... 128
Do Not Disturb (DND)............................................................................................. 129
Call Forward ........................................................................................................... 134
Call Transfer ............................................................................................................ 143
x
Table of Contents
Call Waiting ............................................................................................................. 145
Conference ............................................................................................................. 146
Local Conference ................................................................................................... 146
Network Conference .............................................................................................. 147
Call Park .................................................................................................................. 149
Call Pickup............................................................................................................... 150
Anonymous Call ..................................................................................................... 154
Anonymous Call Rejection..................................................................................... 155
Advanced Phone Features ...........................................157
Busy Lamp Field (BLF) ............................................................................................ 157
BLF List ..................................................................................................................... 159
Call Recording ........................................................................................................ 161
Hot Desking ............................................................................................................. 163
Intercom................................................................................................................... 166
Outgoing Intercom Calls ....................................................................................... 166
Incoming Intercom Calls ........................................................................................ 166
Using Intercom ........................................................................................................ 168
Multicast Paging ..................................................................................................... 169
Sending RTP Stream ............................................................................................... 169
Receiving RTP Stream ............................................................................................ 172
Using Multicast Paging .......................................................................................... 174
Music on Hold ......................................................................................................... 175
Automatic Call Distribution (ACD) ........................................................................ 176
Shared Call Appearance (SCA) .......................................................................... 178
Configuring SCA Feature on the IP Phone ........................................................... 179
Using SCA Feature on the IP Phone ..................................................................... 186
Bridged Line Appearance (BLA) .......................................................................... 195
Configuring BLA Feature on the IP Phone ............................................................ 196
Using BLA Feature on the IP Phone ...................................................................... 199
Messages ................................................................................................................ 201
Short Message Service (SMS) ............................................................................. 201
Voice Mail ................................................................................................................ 204
Message Waiting Indicator (MWI) ....................................................................... 206
Troubleshooting ............................................................209
General Issues ........................................................................................................ 209
Display Issues ......................................................................................................... 209
Password Issues ...................................................................................................... 210
Call Issues ............................................................................................................... 211
Headset & Handset Issues .................................................................................... 211
Audio Issues ............................................................................................................ 212
Log Issues ................................................................................................................ 214
xi
User Guide for the SIP-T48G IP Phone
Reboot & Upgrade & Reset Issues ........................................................................ 217
Regulatory Notices .......................................................221
Service Agreements .............................................................................................. 221
Limitations of Liability ............................................................................................. 221
Safety Instructions .................................................................................................. 221
Appendix A - Time Zones .............................................223
Index .............................................................................225
xii
Overview
This chapter provides the overview of the SIP-T48G IP phone. Topics include:

Hardware Component Instructions

Icon Instructions

LED Instructions

User Interfaces

Documentations
If you require additional information or assistance with your new phone, contact your
system administrator.
The main hardware components of the SIP-T48G IP phone are the touch screen and the
keypad.
1
User Guide for the SIP-T48G IP Phone
Hardware component instructions of the SIP-T48G IP phone are:
Item
Description
Indicates phone power and some feature statuses.
①
Power Indicator LED
• Receives an incoming call—Fast flashing
• Receives a voice mail or text message—Slow flashing
The screen is touch-sensitive. Tap to select and highlight
screen items.
Shows information about calls, messages, soft keys,
time, date and other relevant data:
②
Touch Screen
• Call information—caller ID, call duration
• Icons (for example,
)
• Missed call text or second incoming caller information
• Prompt text (for example, “Saving config file!”)
• Time and date
③
HEADSET Key
Toggles and indicates the headset mode.
④
MUTE Key
Toggles and indicates mute feature.
⑤
HOLD Key
Places a call on hold or resumes a held call.
⑥
TRANSFER Key
Transfers a call to another party.
⑦
Speakerphone Key
⑧
MESSAGE Key
Accesses voice messages.
⑨
REDIAL Key
Redials a previously dialed number.
Toggles and indicates the hands-free speakerphone
mode.
Position the cursor within text you’re updating.
Enable or disable fields.
Turn pages or scroll through values for a field.
Scroll through items.
⑩
Access to History and Directory respectively.
Confirms actions or answers incoming calls.
Cancels actions or rejects incoming calls.
⑪
Volume Key
⑫
Keypad
⑬
Speaker
Adjusts the volume of the handset, headset,
speakerphone and ringer.
Provides the digits, letters and special characters in
context-sensitive applications.
Provides hands-free (speakerphone) audio output.
Secures the handset in the handset cradle when the IP
⑭
Hookswitch Tab
phone is mounted vertically. For more information on
how to adjust the hookswitch tab, refer to Yealink Wall
Mount Quick Installation Guide for Yealink IP Phones.
Picking up the handset from the handset cradle, the
⑮
Hookswitch
hookswitch bounces and the phone connects to the line,
laying the handset down on the handset cradle, the
2
Overview
Item
Description
phone disconnects from the line.
Icons appearing on the touch screen are described in the following table:
Icons
Description
Network is unavailable
The private line registers successfully
Register failed
(Flashing)
Registering
The shared/bridged line registers successfully
Hands-free speakerphone mode
Handset mode
Headset mode
Voice Mail
Text Message
Auto Answer
Do Not Disturb
Call Hold
Call Mute
Ringer volume is 0
Phone Lock
Received Calls
3
User Guide for the SIP-T48G IP Phone
Placed Calls
Missed Calls
Call Forward
Forwarded Calls
Recording box is full
A call cannot be recorded
Recording starts successfully
Recording cannot be started
Recording cannot be stopped
Bluetooth mode is on
Bluetooth headset is both paired and connected
Wi-Fi connection is successful
Wi-Fi connection failed
The default caller photo and contact icon
The icons of DSS key appearing on the touch screen are described in the following
table:
Icons
Description
Log into the ACD system
The ACD status is available
The ACD status is unavailable
Log out of the ACD system
Voice Mail
Direct Pickup
4
Overview
Icons
Description
Group Pickup
Call Park
Park successfully
Call Park idle state
Park failed
Call park ringing state
Intercom
DTMF
Prefix
Local Group
XML Group
XML Browser
LDAP
Conference
Forward
Transfer
Hold
DND
ReCall
SMS
Record
URL Record
Recording starts successfully (Record/URL Record)
Multicast Paging
Group Listening
Paging List
Hot Desking
5
User Guide for the SIP-T48G IP Phone
Icons
Description
Zero Touch
URL
Phone Lock
Directory
Speed Dial
Icon indicator (associated with BLF/BLF List)
Icons
Description
BLF/BLF List
BLF/BLF list ringing state
(Flashing)
BLF/BLF list calling state
(Flashing)
BLF/BLF list hold state
BLF/BLF list call park state
BLF/BLF List failed state
Icon indicator (associated with a shared line)
The local SCA phone indicates the phone is involved in an SCA call, while the
monitoring SCA phone indicates the phone is not involved in the SCA call.
Icon
Description
The shared line is idle.
(for monitoring SCA phone)
(Flashing)
(Flashing)
6
The shared line is seized.
The shared line receives an incoming call.
The shared line is dialing.
Overview
Icon
Description
The shared line is in conversation.
The shared line conversation is placed on
public hold.
(for local SCA phone)
The shared line conversation is placed on
private hold.
(for monitoring SCA phone)
The shared line conversation is barged in by
the other shared line party.
For a multi-party call, all the shared line
parties participating in this call place the
shared line conversation on hold.
Icon indicator (associated with a bridged line)
The local BLA phone indicates the phone is involved in a BLA call, while the monitoring
BLA phone indicates the phone is not involved in the BLA call.
Icon
Description
The bridged line is idle.
(for monitoring BLA phone)
(Flashing)
(Flashing)
The bridged line is seized.
The bridged line receives an incoming call.
The bridged line is dialing.
The bridged line is in conversation.
The bridged line conversation is placed on
hold.
7
User Guide for the SIP-T48G IP Phone
Power Indicator LED
LED Status
Description
Solid red
The phone is initializing.
Fast flashing red
The phone is ringing.
Slow flashing red
The phone receives a voice mail or text message.
The phone is powered off.
The phone is idle.
Off
The phone is busy.
The call is placed on hold or is held.
The call is muted.
Note
The above introduces the default power indicator LED status. The status of the power
indicator LED is configurable via web user interface. For more information, refer to
Yealink_SIP-T2_Series_T19(P) E2_T4_CP860_Series_IP_Phones_Administrator_Guide.
Two ways to customize configurations of your SIP-T48G IP phone:

The user interface on the IP phone.

The user interface in a web browser on your PC.
The hardware components keypad and touch screen constitute the phone user
interface, which allows the user to execute all call operation tasks and basic
configuration changes directly on the phone. In addition, you can use the web user
interface to access all configuration settings. In many cases, it is possible to use either
the phone user interface and/or the web user interface interchangeably. However, in
some cases, it is only possible to use one or the other interface to operate the phone
and change settings.
You can customize your phone by tapping
to access the phone user interface. The
Advanced option is only accessible to the administrator, and the default administrator
password is “admin” (case-sensitive). For more information on customizing your phone
with the available options from the phone user interface, refer to Customizing Your
Phone on page 31.
8
Overview
In addition to the phone user interface, you can also customize your phone via web user
interface. In order to access the web user interface, you need to know the IP address of
your new phone. To obtain the IP address, press the OK key on the phone when the
phone is idle. Enter the IP address (e.g., http://192.168.0.10 or 192.168.0.10) in the
address bar of a web browser on your PC. The default administrator user name and
password are both “admin” (case-sensitive).
The main options you can use to customize the IP phone via phone user interface and/or
via web user interface are listed in the following table:
Options
Phone User Interface
Web User Interface
√
√
--Wallpaper
√
√
--Backlight
√
--Contrast
√
--Language
√
--Time & Date
√
--Administrator Password
√
--Key as Send
√
--Phone Lock
√
--Ring Tones
√
Status
--IPv4
--MAC
--Firmware
--Network
--Phone
--Accounts
Basic Phone Settings
×
--Contact Management
--Directory
×
--Local Directory
√
--Blacklist
√
--Remote Phone Book
×
--Call History Management
√
--DSS Keys
√
--Bluetooth
√
--Wi-Fi
√
--Account Registration
√
--Dial Plan
×
--Emergency Number
×
--Live Dialpad
×
√
9
User Guide for the SIP-T48G IP Phone
Options
--Hotline
Phone User Interface
Web User Interface
√
Basic Call Features
--Recent Call In Dialing
×
--Auto Answer
√
--Auto Redial
√
--Call Completion
√
--ReCall
√
--Do Not Disturb (DND)
√
--Call Forward
√
--Call Transfer
√
--Call Waiting
√
--Conference
×
--Call Park
√
--Call Pickup
√
--Anonymous Call
√
--Anonymous Call Rejection
√
√
Advanced Phone Features
--Busy Lamp Field (BLF)
√
--BLF List
×
--Call Recording
√
--Hot Desking
√
--Intercom
√
--Multicast Paging
×
--Music on Hold
×
--Automatic Call Distribution (ACD)
x
--Shared Call Appearance (SCA)
x
--Bridged Line Appearance (BLA)
x
--Messages
√
√
SIP Account
--User Options
--Activation
√
--Label
√
--Display Name
√
--Register Name
√
--User Name
√
--Password
√
--Server Options
10
--SIP Server 1/2
√
--Register Port
x
--Outbound Status
√
--Outbound Proxy1/2
√
√
Overview
Options
Note
Phone User Interface
--Proxy Fallback Interval
√
--NAT Status
√
Web User Interface
The table above lists most of the feature options. Please refer to the relevant sections for
more information.
The following table shows documentations available for the SIP-T48G IP phone.
Name
Contents
Basic call features
Quick Start Guide
and phone
customizations
Where found
Language
In the package
English
On the website
English/Chinese
On the website
English/Chinese
Phone/Web user
interface settings
User Guide
Basic call features
and advanced
phone features
Note
You can also download the latest documentations online:
http://support.yealink.com/documentFront/forwardToDocumentDetailPage?documentId=
2.
11
User Guide for the SIP-T48G IP Phone
12
Getting Started
This chapter provides the following basic installation instructions and information for
obtaining the best performance with the SIP-T48G IP phone. Topics include:

Packaging Contents

Phone Installation

Phone Initialization

Phone Status

Basic Network Settings

Registration

Touch Screen Display

Navigating Menus and Fields

Entering Data and Editing Fields
If you require additional information or assistance with your new phone, contact your
system administrator.
The following components are included in your SIP-T48G IP phone package:

SIP-T48G IP Phone
13
User Guide for the SIP-T48G IP Phone

Phone Stand

Handset & Handset Cord

Ethernet Cable

Quick Start Guide
Check the list before installation. If you find anything missing, contact your system
administrator.
The following items are optional accessories for your SIP-T48G IP phone. You need to
purchase them separately if required.
14
Getting Started

Wall Mount Bracket

Power Adapter

Headset

Wireless Headset Adapter EHS36

Bluetooth USB Dongle BT40
15
User Guide for the SIP-T48G IP Phone

Note
Wi-Fi USB Dongle WF40
We recommend that you use the accessories provided or approved by Yealink. The use
of unapproved third-party accessories may result in reduced performance.
If your phone is already installed, proceed to Phone Initialization on page 19.
This section introduces how to install the phone:
1)
Attach the stand or the optional wall mount bracket
2)
Connect the handset and optional headset
3)
Connect the network and power
1)
Attach the stand or the optional wall mount bracket
Desk Mount Method
16
Getting Started
Wall Mount Method (Optional)
Note
The hookswitch tab has a lip which allows the handset to stay on-hook when the IP
phone is mounted vertically.
The top two slots are plugged up by silica gel. You need to pull out silica gel before
attaching the wall mount bracket. For more information on how to mount your phone to a
wall, refer to Yealink Wall Mount Quick Installation Guide for Yealink IP Phones.
2)
Note
Connect the handset and optional headset
The EXT port can also be used to connect an expansion module EXP40.
The USB port can also be used to connect Wi-Fi USB Dongle WF40.
For more information on how to use EHS36, EXP40, Bluetooth USB Dongle BT40 or Wi-Fi
USB Dongle WF40, refer to Yealink EHS36 User Guide, Yealink EXP40 User Guide, Yealink
Bluetooth USB Dongle BT40 User Guide or Yealink Wi-Fi USB Dongle WF40 User Guide.
3)
Connect the network and power
You have two options for power and network connections. Your system administrator will
advise you which one to use.

AC power (Optional)

Power over Ethernet (PoE)
17
User Guide for the SIP-T48G IP Phone
AC Power (Optional)
To connect the AC power:
1.
Connect the DC plug on the power adapter to the DC5V port on the phone and
connect the other end of the power adapter into an electrical power outlet.
2.
Connect the included or a standard Ethernet cable between the Internet port on the
phone and the one on the wall or switch/hub device port.
Note
The IP phone should be used with Yealink original power adapter (5V/2A) only. The use of
the third-party power adapter may cause the damage to the phone.
Power over Ethernet
With the included or a regular Ethernet cable, the SIP-T48G IP phone can be powered
from a PoE-compliant switch or hub.
18
Getting Started
To connect the PoE:
1.
Connect the Ethernet cable between the Internet port on the phone and an
available port on the in-line power switch/hub.
Note
If in-line power is provided, you don’t need to connect the phone to the power adapter.
Make sure the switch/hub is PoE-compliant.
The phone can also share the network with another network device such as a PC
(personal computer). This is an optional connection.
Important! Do not remove power to the phone while it is updating firmware and
configurations.
After your phone is powered on, the system boots up and performs the following steps:
Automatic Phone Initialization
The phone finishes the initialization by loading the saved configuration. The touch
screen displays "Welcome Initializing…Please wait" during the initialization.
DHCP (Dynamic Host Configuration Protocol)
The phone attempts to contact a DHCP server in your network to obtain valid IPv4
network settings (e.g., IP address, subnet mask, default gateway address and DNS
address) by default.
Note
If your network does not use DHCP, proceed to Basic Network Settings on page 21.
19
User Guide for the SIP-T48G IP Phone
You can view phone status via phone user interface or web user interface.
Available information of phone status includes:

General information (IPv4 address, MAC address and firmware version)

Network status (e.g., IPv4 status, IP mode and MAC address)

Phone status (e.g., device model, hardware version, product ID, MAC address and
device certificate status)

Note
Account status (e.g., register status of SIP accounts)
You can view the device certificate status via phone user interface only.
To view the phone status via phone user interface:
1.
Press
, or tap
->Status.
2.
Tap the desired item to view the specific information.
To view the phone status via web user interface:
20
1.
Open a web browser on your computer.
2.
Enter the IP address in the browser’s address bar, and then press the Enter key.
Getting Started
3.
Enter the user name (admin) and password (admin) in the login page.
4.
Click Confirm to login.
The phone status is displayed on the first page of the web user interface.
If your phone cannot contact a DHCP server for any reason, you need to configure
network settings manually. The IP phone can support either or both IPv4 and IPv6
addresses.
To configure the IP mode via phone user interface:
1.
Tap
->Advanced (default password: admin) ->Network->WAN Port.
21
User Guide for the SIP-T48G IP Phone
2.
Tap the gray box of the IP Mode field, and then select the desired value (IPv4, IPv6
or IPv4 & IPv6) from the pull-down list.
3.
Tap the Save soft key to accept the change or
to cancel.
You can configure a static IPv4 address for the IP phone. Before configuring it, make sure
that the IP mode is configured as IPv4 or IPv4 & IPv6.
To configure a static IPv4 address via phone user interface:
1.
Tap
->Advanced (default password: admin) ->Network->WAN Port->IPv4.
2.
Tap the gray box of the Type field, and then select Static IP from the pull-down list.
3.
Enter the desired value in the IP Address, Subnet Mask, Gateway, Primary DNS and
Secondary DNS field respectively.
4.
Tap the Save soft key to accept the change or
to cancel.
You can configure a static IPv6 address for the IP phone. Before configuring it, make sure
that the IP mode is configured as IPv6 or IPv4 & IPv6.
To configure a static IPv6 address via phone user interface:
1.
22
Tap
->Advanced (default password: admin) ->Network->WAN Port->IPv6.
Getting Started
2.
Tap the gray box of the Type field, and then select Static IP from the pull-down list.
3.
Enter the desired value in the IP Address, IPv6 IP Prefix, Gateway, Primary DNS and
Secondary DNS field respectively.
4.
Tap the Save soft key to accept the change or
to cancel.
If you are using an xDSL modem for IPv4 network connection, you can connect your
phone to the Internet via PPPoE mode. Set the WAN port as a PPPoE port. The PPPoE port
will perform a PPP negotiation to obtain the IP address. Contact your system
administrator for the PPPoE user name and password.
To configure PPPoE via phone user interface:
1.
Tap
->Advanced (default password: admin) ->Network->WAN Port->IPv4.
2.
Tap the gray box of the Type field, and then select PPPoE from the pull-down list.
3.
Enter the PPPoE user name and password in the corresponding fields.
23
User Guide for the SIP-T48G IP Phone
4.
Note
Tap the Save soft key to accept the change or
to cancel.
The wrong network settings may result in inaccessibility of your phone and may also
have an impact on your network performance. For more information on these
parameters, contact your system administrator.
Generally, your phone will be deployed with multiple other phones. In this case, your
system administrator will configure the phone parameters beforehand, so that after you
start up your phone, the phone will be registered and ready for use. The SIP-T48G IP
phone supports up to 16 accounts. If your phone is not registered, you may have to
register it. For more information on how to register your phone, refer to Account
Management on page 101.
Idle Screen Display
If the phone has successfully started up, the idle screen will be displayed. The following
figure is an example of what is displayed on the touch screen.
No.
Name
1
Status Bar
Description
Displays the phone’s default account, icons and
the time and date.
The label of the default account is displayed in
2
Default Account
the left of the status bar.
If multiple accounts are already registered, tap
and select the desired default account. For
24
Getting Started
No.
Name
Description
more information, refer to the default account
on page 102.
Icons are displayed in the middle of the status
3
Icons
bar.
For more information, refer to Icon Instructions
on page 3.
4
Time and Date
The phone’s time and date are displayed in the
right of the status bar.
The idle screen displays line keys 1-11. The line
keys 1-6 on the left and the line keys 7-11 on the
5
Line Keys (1-11)
right can be used to activate up to 11 lines.
Various features can be assigned to line keys.
Each line key can display the label and indicate
the status of the assigned feature.
Provides a quick access to the line key screen.
6
DSS Key
Then, you can tap the desired line key to
configure it.
Shows the specified wallpaper, which can be
7
Wallpaper
customized. For more information, refer to
Wallpaper on page 31.
8
Call Window
Displays call information.
: tap this shortcut key to enter the History
screen and view call history.
: tap this shortcut key to enter the Directory
screen and view contacts.
9
Shortcut Keys
: tap this shortcut key to toggle the DND
mode or enter the custom DND configuration
screen.
: tap this shortcut key to enter the main
menu.
25
User Guide for the SIP-T48G IP Phone
Configuration Screen Display
No.
Name
Description
1
Screen Title Area
Displays the title of the current menu screen.
2
Operation Option Area
Displays various operation options for
different menu screens.
Displays menu items.
3
Menu Tree Area
Tap the desired menu item to enter the
corresponding feature configuration screen.
Displays configuration items of the
4
Configuration Area
highlighted menu item in the menu tree area.
You can configure feature settings in this
area.
5
Soft Keys
Label automatically to identify their
context-sensitive features.
To navigate menus and fields, you can:
Note
26

Tap soft keys on the touch screen.

Tap menu items, fields, and arrows on the touch screen.

Press keys on the phone keypad.
The menu system will automatically exit to the idle screen after 60 seconds of inactivity.
Getting Started
To operate your phone, follow these tips:
If you want to
Action
Enter the main menu.
Tap
.
Return to the idle screen.
Tap
.
Go back to the previous menu.
Tap
or press
.
Tap the item.
Select an item.
Scroll to the item by pressing
Tap
Scroll through items page by
page.
or
or
.
.
(If you are in the call history, local directory,
language configuration screen or ring tones
configuration screen, you can also press
or
.)
Tap the field’s highlighted gray box. From the
Scroll through values for a field.
pull-down list, tap
or
to scroll through
values page by page, or press
or
to
scroll values one by one.
Select a value for a field.
From the pull-down list, tap the value or scroll
to the value and then press
.
You can enter data and edit fields using the phone keypad.
Keypad on the phone provides different characters when using the 2aB, abc, Abc, ABC
or 123 input mode. You can change the following input modes to enter data and edit
fields on your phone. When your phone keypad matches the input mode, you can press
the keypad repeatedly to view the character (or numbers) options and stop to select.
When the character (or numbers) you want to enter displays in the field, wait one
second, and enter the next character (or numbers).
The following table lists the input modes and character (or numbers) options for the
keypad:
Input Mode
Keypad
2aB
abc
Abc
ABC
1
2abcABC
123
1
abc2äæ å
abc2äæ å
ABC2Ä Æ Å
àáâãç
àáâãç
ÀÁÂÃÇ
2
27
User Guide for the SIP-T48G IP Phone
Input Mode
2aB
abc
Abc
ABC
def3èéêë
def3èéêë
DEF3ÈÉÊË
ð
ð
Ð
4ghiGHI
ghi4ìíîï
ghi4ìíîï
GHI4ÌÍÎÏ
4
5jklJKL
jkl5£
jkl5£
JKL5£
5
6mnoMN
mno6öøò
mno6öøò
MNO6Ö Ø
O
óôõñ
óôõñ
ÒÓÔÕÑ
pqrs7ßЅ
pqrs7ßЅ
PQRS7Ѕ
tuv8ùúûü
tuv8ùúûü
wxyz9ýÞ
wxyz9ýÞ
WXYZ9ÝÞ
9
0
space
space
space
0
*.,'?!\-()@/:
*.,'?!\-()@/:
*.,'?!\-()@/:
*.,'?!\-()@/:
_;+&%=<
_;+&%=<
_;+&%=<
_;+&%=<
>
>
>
>
￡$¥¤[]{}
￡$¥¤[]{}
￡$¥¤[]{}
￡$¥¤[]{}
~^¡¿§#"|
~^¡¿§#"|
~^¡¿§#"|
~^¡¿§#"|
#
#
#
#
Keypad
3defDEF
7pqrsPQR
S
8tuvTUV
9wxyzWX
YZ
123
3
6
7
TUV8Ù Ú Û
8
Ü
.*:/@[]
#
To enter or edit data:
1.
Tap the field.
2.
Do one of the following:
If you want to
Enter only digits (1),
uppercase (A) characters,
lowercase (a) characters,
or alphanumeric (2aB)
characters.
28
Then you can
Press a keypad key one or more times
(depending what input mode you’re in) to
enter the characters that is displayed on the
keypad key.
You can tap
or abc one or more times to
switch among uppercase (ABC), numeric
Getting Started
If you want to
Then you can
(123), alphanumeric (2aB), uppercase and
lowercase (Abc) and lowercase (abc) input
modes.
For example, if the input mode is ABC:
-
To enter “A”, press
once.
-
To enter “B”, press
twice quickly.
-
To enter “C”, press
three times
quickly.
-
To enter “2Ä Æ Å À Á Â Ã Ç ”, press
more than three times quickly.
Note: When you are in the uppercase (ABC),
uppercase and lowercase (Abc) or lowercase
(abc) input mode,
is not available.
Press the keypad key
press
For
-
or
, or
.
Key:
If it is in the uppercase (ABC soft key),
uppercase and lowercase (Abc soft key)
or lowercase (abc soft key) input mode, it
will provide the space character.
-
If it is in the numeric (123 soft key) or
alphanumeric (2aB soft key) input mode,
it will only provide the digit 0.
Enter special characters.
For
-
key:
It only provides the pound character #.
For
-
key:
If it is in the uppercase (ABC), lowercase
(abc), uppercase and lowercase (Abc) or
alphanumeric (2aB) input mode, it will
provide the following special characters:
*.,?!\-()@/:_;+&%=<>￡$¥¤[]{}~^¡¿§#"|.
-
If it is in the numeric (123) input mode, it
will provide the following special
characters: .*:/@[].
Press
Delete text you entered.
or
to position the cursor to the
right of the text you want to delete, and then
tap Delete or
to delete one character at a
time.
Delete an entire field of
Swipe your finger to the left or right to select
29
User Guide for the SIP-T48G IP Phone
If you want to
data.
Then you can
the entire field of data, so that the data is
highlighted, and then tap the Delete or
3.
Note
30
Press
.
When the phone is on the pre-dialing screen, characters can be entered using the
on-screen keypad.
.
Customizing Your Phone
You can customize your SIP-T48G IP phone by personally configuring certain settings, for
example, wallpaper, time & date and ring tones. You can add contacts to the phone’s
local directory manually or from call history. You can also personalize different ring
tones for different callers.
This chapter provides basic operating instructions for customizing your phone. Topics
include:

General Settings

Audio Settings

Contact Management

Call History Management

System Customizations
If you require additional information or assistance with your new phone, contact your
system administrator.
You can customize the wallpaper of the SIP-T48G IP phone, and can change the
wallpaper image via phone user interface or web user interface. You can also upload
custom wallpaper images via web user interface.
The SIP-T48G IP phones support the file format of wallpaper image in the following table:
Format
*.jpg/*.png/*.bmp
Resolution
Wallpaper
800*480
Size
≤5MB
To change the wallpaper via phone user interface:
1.
Tap
->Basic->Display->Wallpaper.
31
User Guide for the SIP-T48G IP Phone
2.
Tap
or
, or press
or
to select the desired wallpaper image.
3.
Tap the Save soft key to accept the change or
to cancel.
Wallpaper is configurable via web user interface at the path Settings->Preference.
To upload the custom wallpaper via web user interface:
1.
Click on Settings->Preference.
2.
In the Upload Wallpaper(800*480) field, click Browse to locate the wallpaper image
from your local system.
3.
Click Upload to upload the file.
The custom wallpaper appears in the pull-down list of Wallpaper.
Note
32
The SIP-T48G IP phone screen size is 800*480 pixels. If the size of the custom wallpaper
doesn’t meet the IP phone screen size, the wallpaper will be stretched or/and zoomed
out according to the IP phone screen size.
Customizing Your Phone
Backlight has three options:
Backlight Active Level: The intensity of the touch screen when the phone is active. You
can change the intensity of the touch screen. Digits (1-10) represent different intensities.
10 is the highest intensity.
Backlight Inactive Level: The intensity of the touch screen when the phone is inactive.
You can select a low intensity or turn off the backlight.
Backlight Time: The delay time to change the intensity of the touch screen when the
phone is inactive. You can select a desired time to change the intensity or turn on the
backlight permanently.

Always On: Backlight is on permanently.

15s, 30s, 60s, 120s, 300s, 600s or 1800s: Backlight is changed when the phone is
inactive after the designated time (in seconds).
You can also change the intensity of the LCD screen of EXP40 connected to the SIP-T48G
IP phone.
To configure the backlight via phone user interface:
1.
Tap
->Basic->Display->Backlight.
2.
Tap the gray box of the Backlight Active Level field, and then select the desired
level from the pull-down list.
3.
Tap the gray box of the Backlight Inactive Level field, and then select the desired
value from the pull-down list.
4.
Tap the gray box of the Backlight Time field, and then select the desired time from
the pull-down list.
5.
Tap the Save soft key to accept the change or
to cancel.
Backlight is configurable via web user interface at the path Settings->Preference.
33
User Guide for the SIP-T48G IP Phone
You can only configure the contrast of the expansion module EXP40 connected to the
SIP-T48G IP phone to a comfortable level on the phone. Ensure that the expansion
module has been connected to the phone before configuration. The intensity of contrast
ranges from 1 to 10 and the highest intensity is 10.
To configure the contrast via phone user interface:
1.
Tap
->Basic->Display->Contrast Setting.
If EXP40 is not connected to the phone, the Contrast Setting screen displays "No
EXP".
2.
Tap the gray box of the Contrast Setting field, and then select the desired value
from the pull-down list.
The default contrast level is “6”.
3.
Tap the Save soft key to accept the change or
to cancel.
The default language of the phone user interface is English. If the language of your web
browser is not supported by the phone, the web user interface will use English by
default. You can change the language for the phone user interface and the web user
interface respectively.
To change the language for the phone user interface:
34
1.
Tap
2.
Tap
->Basic->Language.
or
to scroll through the list of available languages.
Customizing Your Phone
3.
Tap the desired language.
4.
Tap the Save soft key to accept the change.
Text displayed on the phone user interface will change to the selected language.
To change the language for the web user interface:
1.
Click on Settings->Preference.
2.
Select the desired language from the pull-down list of Language.
3.
Click Confirm to accept the change.
Text displayed on the web user interface will change to the selected language.
The time and date are displayed on the right of the status bar. You can configure the
35
User Guide for the SIP-T48G IP Phone
phone to obtain the time and date from the SNTP server automatically, or configure the
time and date manually. If the phone cannot obtain the time and date from the Simple
Network Time Protocol (SNTP) server, contact your system administrator for more
information.
To configure the SNTP setting via phone user interface:
1.
Tap
->Basic->Time & Date->General.
2.
Tap the gray box of the Type field, and then select SNTP Settings from the pull-down
list.
3.
Tap the gray box of the Time Zone field, and then select the time zone that applies
to your area from the pull-down list.
The default time zone is “+8”.
4.
Enter the domain name or IP address of SNTP server in the NTP Server1 and NTP
Server2 field respectively.
5.
Tap the gray box of the Daylight Saving field, and then select the desired value
from the pull-down list.
6.
Tap the gray box of the Location field, and then select the desired time zone name
from the pull-down list
This field appears only if Daylight Saving field is selected Automatic, and the
default time zone name is “China(Beijing)”.
7.
Note
Tap the Save soft key to accept the change or
to cancel.
Please refer to Appendix A - Time Zones for the list of available time zones on the IP
phone.
To configure the time and date manually via phone user interface:
1.
Tap
->Basic->Time & Date->General.
2.
Tap the gray box of the Type field, and then select Manual Settings from the
pull-down list.
36
Customizing Your Phone
3.
Enter the specific date and time in the corresponding fields.
4.
Tap the Save soft key to accept the change.
The time and date displayed on the touch screen will change accordingly.
There are 7 available date formats. For example, for the date format “WWW DD MMM”,
“WWW” represents the abbreviation of the weekday, “DD” represents the two-digit day,
and “MMM” represents the first three letters of the month.
The date formats available:
Date Format
Example (2015-05-18)
WWW MMM DD
Mon May 18
DD-MMM-YY
18-May-15
YYYY-MM-DD
2015-05-18
DD/MM/YYYY
18/05/2015
MM/DD/YY
05/18/15
DD MMM YYYY
18 May 2015
WWW DD MMM
Mon 18 May
To configure the date and time format via phone user interface:
1.
Tap
->Basic->Time & Date->Time & Date Format.
2.
Tap the gray box of the Date Format field, and then select the desired date format
from the pull-down list.
37
User Guide for the SIP-T48G IP Phone
3.
Tap the gray box of the Time Format field, and then select the desired time format
(12 Hour or 24 Hour) from the pull-down list.
4.
Tap the Save soft key to accept the change or
to cancel.
Time and date are configurable via web user interface at the path Settings->Time &
Date.
The Advanced option is only accessible to the administrator. The default administrator
password is “admin”. For security reasons, you should change the default administrator
password as soon as possible.
To change the administrator password via phone user interface:
38
1.
Tap
->Advanced (default password: admin) ->Set Password.
2.
Enter the old password in the Current PWD field.
3.
Enter the new password in the New PWD field.
4.
Re-enter the new password in the Confirm PWD field.
Customizing Your Phone
5.
Tap the Save soft key to accept the change or
to cancel.
Administrator password is configurable via web user interface at the path
Security->Password.
You can set the “#” key or “*” key to perform as a send key while dialing.
To configure key as send via phone user interface:
1.
Tap
->Features->General.
2.
Tap the gray box of the Key as Send field, and then select # or * from the pull-down
list, or select Disabled to disable this feature.
3.
Tap the Save soft key to accept the change or
to cancel.
Key as send is configurable via web user interface at the path Features->General
Information.
You can lock your phone temporarily when you are not using it. This feature helps to
protect your phone from unauthorized use.
When the phone is locked, the following you needed to know:
All keys are locked except the Volume key, digit keys, # key, * key and Speakerphone
key. You are only allowed to dial emergency numbers, reject incoming calls by pressing
the X key or tapping the Reject soft key, answer incoming calls by lifting the handset,
pressing the Speakerphone key, the HEADSET key, the OK key or tapping the Answer
soft key, and end the call by hanging up the handset, pressing the Speakerphone key, X
key or tapping the EndCall soft key.
Note
The emergency number setting, if desired, must be made before lock activation. For
more information, refer to Emergency Number on page 110.
39
User Guide for the SIP-T48G IP Phone
To activate the phone lock via phone user interface:
1.
Tap
->Advanced (default password: admin) ->Phone Lock.
2.
Tap the gray box of the Lock Enable field, and then select Enabled from the
pull-down list to enable this feature.
3.
Enter the desired interval of automatic phone lock in the Lock Time Out field.
The default timeout is 0. It means the phone will not be automatically locked. You
need to long press
to lock it immediately when the phone is idle.
If it is set to other values except 0 (e.g., 5), the phone will be locked when the phone
is inactive in idle screen for the designated time (in seconds).
4.
Tap the Save soft key to accept the change.
When the phone is locked, the touch screen prompts “Phone locked.” and displays
the icon
.
To unlock the phone, you must know the phone unlock PIN. The default phone unlock PIN
is “123”.
To change the phone unlock PIN via phone user interface:
1.
40
Tap
->Basic->Change PIN.
Customizing Your Phone
2.
Enter the desired value in the Current PIN, New PIN and Confirm PIN field
respectively.
3.
Note
Tap the Save soft key to accept the change or
to cancel.
The unlock PIN length must be within 15 digits.
To unlock the phone via phone user interface:
1.
Tap the locked key, the touch screen prompts “Unlock PIN”.
2.
Enter the PIN in the Unlock PIN field.
3.
Tap OK to unlock the phone.
The
icon disappears from the touch screen.
You can long press
or wait for a period of time (if configured) to lock the
phone again.
Note
You can also unlock the phone by administrator password. When you enter the
administrator password to unlock the phone, the phone will turn to the Change PIN
screen.
41
User Guide for the SIP-T48G IP Phone
To deactivate the phone lock via phone user interface:
1.
Tap
->Advanced (default password: admin) ->Phone Lock.
2.
Tap the gray box of the Lock Enable field, and then select Disabled from the
pull-down list to disable this feature.
3.
Tap the Save soft key to accept the change.
Phone lock is configurable via web user interface at the path Features->Phone Lock.
You can press the Volume key to adjust the ringer volume when the phone is idle. You
can also press the Volume key to adjust the receiver volume of currently engaged audio
devices (handset, speakerphone or headset) when the phone is in use.
42
Customizing Your Phone
To adjust the volume when the phone is idle:
1.
Press
to adjust the ringer volume.
If the ringer volume is adjusted to minimum, the
screen.
Note
icon will appear on the touch
To adjust the volume when the phone is during a call:
1.
Press
to adjust the volume of currently engaged audio device (handset,
speakerphone or headset).
Ring tones are used to indicate incoming calls. You can select different ring tones to
distinguish different accounts registered on your phone, or to distinguish your phone
from your neighbor’s.
43
User Guide for the SIP-T48G IP Phone
To select a ring tone for the phone via phone user interface:
1.
Tap
->Basic->Sound->Ring Tones->Common.
2.
Tap the desired ring tone.
3.
Tap the Save soft key to accept the change or
to cancel.
A ring tone for the phone is configurable via web user interface at the path
Settings->Preference->Ring Type.
To select a ring tone for the account via phone user interface:
1.
Tap
->Basic->Sound->Ring Tones.
2.
Tap the desired account.
3.
Tap the desired ring tone.
If Common is selected, this account will use the ring tone selected for the phone.
4.
Tap the Save soft key to accept the change or
to cancel.
A ring tone for the account is configurable via web user interface at the path
Account->Basic->Ring Type.
44
Customizing Your Phone
To upload a custom ring tone for your phone via web user interface:
1.
Click on Settings->Preference.
2.
In the Upload Ringtone field, click Browse to locate a ring tone file (the file format
must be *.wav) from your local system.
3.
Click Upload to upload the file.
The priority of ring tone for an incoming call on the phone is as follows:
Contact ring tone (refer to Adding Groups) >Group ring tone (refer to Adding
Groups) >Account ring tone >Phone ring tone.
Note
Single custom ring tone file must be within 8MB and total custom ring tone files must be
within 20MB.
Uploading custom ring tones for your phone is configurable via web user interface only.
This section provides the operating instructions for managing contacts. Topics include:

Directory

Local Directory

Blacklist

Remote Phone Book
Directory provides easy access to frequently used lists. The lists may contain Local
Directory, History, Remote Phone Book and LDAP.
45
User Guide for the SIP-T48G IP Phone
To configure the directory via web user interface:
1.
Click on Directory->Setting.
2.
In the Directory block, select the desired list from the Disabled column and then
click
.
The selected list appears in the Enabled column.
3.
Repeat the step 2 to add more lists to the Enabled column.
4.
To remove a list from the Enabled column, select the desired list and then click
5.
To adjust the display order of the enabled lists, select the desired list and then click
or
6.
Note
.
Click Confirm to accept the change.
Directory is configurable via web user interface only.
If the remote phone book and LDAP are not configured in advance, you cannot view
remote phone book and LDAP lists on the phone user interface. For more information on
remote phone book, refer to Remote Phone Book on page 67. For more information on
LDAP, refer to Yealink_SIP-T2_Series_T19(P)
E2_T4_CP860_Series_IP_Phones_Administrator_Guide.
To view the directory via phone user interface:
1.
Tap
-
46
when the phone is idle.
If only one list is enabled for the directory, tap
to view the list directly.
.
Customizing Your Phone
-
If more than one list is enabled for the directory, tap the desired list you want to
view, and then tap OK.
The built-in phone directory can store the names and phone numbers of your contacts.
You can store up to 1000 contacts and 48 groups in your phone's local directory. You can
add new groups and contacts, edit, delete or search for a contact, or simply dial a
contact number from the local directory.
To add a group to the local directory:
1.
Tap
.
The IP phone enters the local directory directly as there is only Local Directory
enabled in the directory by default.
If Local Directory is removed from the directory (refer to Directory on page 45), tap
->Directory->All Contacts to enter the local directory.
2.
Tap Setting.
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User Guide for the SIP-T48G IP Phone
3.
Tap New Group.
4.
Enter the desired group name in the highlighted field.
5.
Tap
to accept the change.
6.
Tap
to specify a ring tone for the group.
7.
Tap the desired ring tone.
If Auto is selected, this group will use the ring tone according to the priority: Contact
ring tone (refer to Adding Contacts) >Account ring tone (refer to Ring
Tones) >Phone ring tone (refer to Ring Tones). If a specific ring tone is selected, this
group will use the ring tone according to the priority: Contact ring tone (refer to
Adding Contacts) >Group ring tone.
8.
Tap OK to accept the change.
You can also edit or delete any newly added contact groups.
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Customizing Your Phone
To edit a group in the local directory:
1.
Tap
.
The IP phone enters the local directory directly as there is only Local Directory
enabled in the directory by default.
If Local Directory is removed from the directory (refer to Directory on page 45), tap
->Directory->All Contacts to enter the local directory.
2.
Tap Setting.
3.
Tap the desired group.
4.
Tap
5.
Edit the group name in the highlighted field.
6.
Tap
after the group name.
to accept the change.
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User Guide for the SIP-T48G IP Phone
To delete a group from the local directory:
1.
Tap
.
The IP phone enters the local directory directly as there is only Local Directory
enabled in the directory by default.
If Local Directory is removed from the directory (refer to Directory on page 45), tap
->Directory->All Contacts to enter the local directory.
2.
Tap Setting.
3.
Tap the desired group.
4.
Tap
before the group name.
The touch screen prompts the following warning:
5.
50
Tap OK to confirm the deletion or Cancel to cancel.
Customizing Your Phone
You can add contacts to the local directory in one of the following ways:

Manually

From call history

From a remote phone book
Adding Contacts Manually
To add a contact to the local directory manually:
1.
Tap
.
The IP phone enters the local directory directly as there is only Local Directory
enabled in the directory by default.
If Local Directory is removed from the directory (refer to Directory on page 45), tap
->Directory->All Contacts to enter the local directory.
2.
Tap Add.
If you want add a contact to the specified contact group, you can tap the contact
group first, and then tap Add.
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User Guide for the SIP-T48G IP Phone
3.
Enter the name and the office, mobile or other numbers in the corresponding fields.
4.
Tap the gray box of the Account field, and then select the desired account from the
pull-down list.
If Auto is selected, the phone will use the default account when placing calls to the
contact from the local directory.
5.
Tap the gray box of the Ring field, and then select the desired ring tone from the
pull-down list.
If Auto is selected, this contact will use the ring tone according to the priority: Group
ring tone (refer to Adding Groups) >Account ring tone (refer to Ring Tones)>Phone
ring tone (refer to Ring Tones).
6.
Tap the gray box of the Photo field, and then select the desired photo from the
pull-down list.
7.
Note
Tap the Save soft key to accept the change or
If the contact already exists in the directory, the touch screen will prompt “Contact name
existed!”.
Adding Contacts from Call History
To add a contact to the local directory from call history:
1.
Tap
.
2.
Tap
or
to turn pages.
You can also press
52
to cancel.
or
to switch pages.
Customizing Your Phone
3.
Tap
after the desired entry.
4.
Tap Add.
5.
Edit the corresponding fields.
6.
Tap the Save soft key to accept the change.
The entry is successfully saved to the local directory.
Adding Contacts from a remote phone book
To add a contact to the local directory from a remote phone book:
1.
Tap
->Directory->Remote Phone Book.
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User Guide for the SIP-T48G IP Phone
If Remote Phone Book is added to the directory (refer to Directory on page 45), tap
->Remote Phone Book to enter the remote phone book.
2.
Tap the desired remote phone book.
The phone then connects to the remote phone book and proceeds to load it. The
contacts in the remote phone book are displayed on the touch screen.
54
3.
Tap
after the desired contact in the remote phone book.
4.
Tap Add.
Customizing Your Phone
5.
Edit the corresponding fields.
6.
Tap the Save soft key to save the contact to the local directory.
If the contact already exists in the local directory, the touch screen will prompt
"Overwrite the original contact?". Tap OK to overwrite the original contact in the
local directory or Cancel to cancel.
For more information on remote phone book operation, refer to Remote Phone Book on
page 67.
To edit a contact in the local directory:
1.
Tap
.
The IP phone enters the local directory directly as there is only Local Directory
enabled in the directory by default.
If Local Directory is removed from the directory (refer to Directory on page 45), tap
->Directory->All Contacts to enter the local directory.
2.
Tap
after the desired contact.
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User Guide for the SIP-T48G IP Phone
If the contact was added to a specified contact group, you can tap the contact
group first, and then tap
3.
Tap the desired field to edit the contact information.
You can tap
4.
after the desired contact.
or
to switch the contact you want to edit.
Tap the Save soft key to accept the change or
to cancel.
To delete a contact from the local directory:
1.
Tap
.
The IP phone enters the local directory directly as there is only Local Directory
enabled in the directory by default.
If Local Directory is removed from the directory (refer to Directory on page 45), tap
->Directory->All Contacts to enter the local directory.
2.
Tap
after the desired contact.
If the contact was added to a specified contact group, you can tap the contact
group first, and then tap
56
after the desired contact.
Customizing Your Phone
3.
Tap Delete.
The touch screen prompts the following warning:
4.
Tap OK to confirm the deletion or Cancel to cancel.
To delete all contacts:
1.
Tap
.
The IP phone enters the local directory directly as there is only Local Directory
enabled in the directory by default.
If Local Directory is removed from the directory (refer to Directory on page 45), tap
->Directory->All Contacts to enter the local directory.
2.
Tap Setting.
3.
Tap the checkbox of Select All.
4.
Tap Delete.
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User Guide for the SIP-T48G IP Phone
The touch screen prompts the following warning:
5.
Tap OK to confirm the deletion or Cancel to cancel.
To upload a new custom photo for a contact via web user interface:
1.
Click on Directory->Local Directory.
2.
Click Browse, and then locate a photo file from your local computer.
3.
Click Upload Photo to upload the photo.
You can click Delete Photo to delete the custom photo.
Note
The phone only supports *.png, *.jpg and .bmp format files. The file size must be less
than 5M.
You can only delete custom photos.
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Customizing Your Phone
To change the custom photo for the contact via web user interface:
1.
Click on Directory->Local Directory.
2.
Click the desired entry you want to edit.
3.
Select the desired photo from the pull-down list of Photo.
4.
Click Edit to accept the change.
When you place a call to the contact or receive a call from the contact, the touch
screen will display the contact photo.
To place a call to a contact from the local directory:
1.
Tap
.
The IP phone enters the local directory directly as there is only Local Directory
enabled in the directory by default.
If Local Directory is removed from the directory (refer to Directory on page 45), tap
->Directory->All Contacts to enter the local directory.
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User Guide for the SIP-T48G IP Phone
2.
Tap the desired contact.
If the contact was added to a specified contact group, you can tap the contact
group first, and then tap the desired contact.
-
If only one number for the contact is stored in the local directory, the contact
number will be dialed out.
-
If multiple numbers for the contact are stored in the local directory, the touch
screen will prompt:
Tap the desired number.
The selected number will be dialed out.
To search for a contact in the local directory:
1.
Tap
.
The IP phone enters the local directory directly as there is only Local Directory
enabled in the directory by default.
If Local Directory is removed from the directory (refer to Directory on page 45), tap
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Customizing Your Phone
->Directory->All Contacts to enter the local directory.
2.
Tap Search.
3.
Enter a few continuous characters of the contact name or continuous numbers of the
contact number (office, mobile or other number) using the keypad.
The contacts whose name or phone number matches the characters entered will
appear on the touch screen. You can dial from the result list.
You can search for a contact from the desired lists when the phone is on the pre-dialing
screen. The lists can be Local Directory, History, Remote Phone Book and LDAP.
To configure search source list in dialing via web user interface:
1.
Click on Directory->Setting.
2.
In the Search Source List In Dialing block, select the desired list from the Disabled
column and click
.
The selected list appears in the Enabled column.
3.
Repeat the step 2 to add more lists to the Enabled column.
4.
(Optional.) To remove a list from the Enabled column, select the desired list and
then click
.
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User Guide for the SIP-T48G IP Phone
5.
To adjust the display order of the enabled list, select the desired list, and click
or
6.
.
Click Confirm to accept the change.
The touch screen will display search results in the adjusted order.
Note
Search source list in dialing is configurable via web user interface only.
To search for an entry in the enabled search source lists:
1.
Pick up the handset, press the Speakerphone key or tap the line key.
2.
Enter a few continuous characters of the entry’s name or continuous numbers of the
entry’s phone number (office, mobile or other number).
The entries in the enabled search source lists whose name or phone number
matches the characters entered will appear on the touch screen.
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Customizing Your Phone
You can tap the desired entry to place a call to the entry.
You can manage your phone’s local directory via phone user interface or web user
interface. But you can only import or export the contact list via web user interface.
To import an XML contact list file via web user interface:
1.
Click on Directory->Local Directory.
2.
Click Browse to locate a contact list file (the file format must be *.xml) from your
local system.
3.
Click Import XML to import the contact list.
The web user interface prompts "The original contact will be covered, continue?".
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User Guide for the SIP-T48G IP Phone
4.
Click OK to complete importing the contact list.
To import a CSV contact list file via web user interface:
1.
Click on Directory->Local Directory.
2.
Click Browse to locate a contact list file (the file format must be *.csv) from your
local system.
3.
(Optional.)Check the Show Title checkbox.
It will prevent importing the title of the contact information which is located in the
first line of the CSV file.
4.
Click Import CSV to import the contact list.
5.
(Optional.) Mark the On radio box in the Delete Old Contacts field.
It will delete all existing contacts while importing the contact list.
6.
Select the contact information you want to import into the local directory from the
pull-down list of Index.
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Customizing Your Phone
At least one item should be selected to be imported into the local directory.
7.
Click Import to complete importing the contact list.
To export a contact list via web user interface:
1.
Click on Directory->Local Directory.
2.
Click Export XML (or Export CSV).
3.
Click Save to save the contact list to your local system.
Importing/exporting contact lists is available via web user interface only.
Note
The built-in phone directory can store names and phone numbers for a blacklist. You
can store up to 30 contacts; add, edit, delete or search for a contact in the blacklist
directory, and even call a contact from the blacklist directory. Incoming calls from the
blacklist directory contacts will be rejected automatically.
To add a contact to the blacklist directory manually:
1.
Tap
->Blacklist or tap
->Directory->Blacklist to enter the blacklist
directory.
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User Guide for the SIP-T48G IP Phone
2.
Tap Add.
3.
Enter the contact’s name and the office, mobile or other numbers in the
corresponding fields.
4.
Tap the gray box of the Account field, and then select the desired account from the
pull-down list.
If Auto is selected, the phone will use the default account when placing calls to the
contact from the blacklist directory.
5.
Tap the Save soft key to accept the change or
to cancel.
To add a contact to the blacklist directory from the local directory:
1.
Tap
.
The IP phone enters the local directory directly as there is only Local Directory
enabled in the directory by default.
If Local Directory is removed from the directory (refer to Directory on page 45), tap
->Directory->All Contacts to enter the local directory.
2.
Tap
after the desired contact.
If the contact was added to a specified contact group, you can tap the contact
66
Customizing Your Phone
group first, and then tap
3.
after the desired contact.
Tap Blacklist.
The touch screen prompts the following warning:
4.
Tap OK to accept the change or Cancel to cancel.
For operating instructions on editing, deleting, placing calls to and/or searching for
contacts in the blacklist directory, refer to the operating instructions of Local Directory on
page 47.
You can add contacts to the local directory, search for a contact, or simply dial a contact
number from the remote phone book.
You can configure your new phone to access up to 5 remote phone books. The phone
supports up to 5000 remote phone book entries. For the access URL of the remote phone
book, contact your system administrator.
To configure an access URL for a remote phone book via web user interface:
1.
Click on Directory->Remote Phone Book.
2.
Enter the access URL in the Remote URL field.
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User Guide for the SIP-T48G IP Phone
3.
Enter the name in the Display Name field.
4.
Click Confirm to accept the change.
Note
An access URL for a remote phone book is configurable via web user interface only.
If you want to tap
to enter the remote phone book, you should enable remote
phone book in the directory lists in advance. For more information on the directory lists,
refer to Directory on page 45.
To access your remote phone book via phone user interface:
1.
Tap
->Directory->Remote Phone Book.
If Remote Phone Book is added to the directory (refer to Directory on page 45), tap
->Remote Phone Book to enter the remote phone book.
2.
Tap the desired remote phone book.
The phone then connects to the remote phone book and proceeds to load it. The
contacts in the remote phone book are displayed on the touch screen.
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Customizing Your Phone
You can tap
to back to the previous interface.
To place a call from the remote phone book:
1.
Tap
->Directory->Remote Phone Book.
If Remote Phone Book is added to the directory (refer to Directory on page 45), tap
->Remote Phone Book to enter the remote phone book.
2.
Tap the desired remote phone book to load the remote phone book.
3.
Tap the desired contact in the remote phone book.
You can enable the phone to present the caller/callee identity stored in the remote
phone book when receiving/placing a call.
To search for a contact in the remote phone book:
1.
Tap
->Directory->Remote Phone Book.
If Remote Phone Book is added to the directory (refer to Directory on page 45), tap
->Remote Phone Book to enter the remote phone book.
2.
Tap Search.
3.
Tap the IME soft key to change the input mode. And then enter a few continuous
characters of the contact name or continuous numbers of the contact number using
the keypad.
The contacts whose name or phone number matches the characters entered will
appear on the touch screen. You can place a call from the result list.
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User Guide for the SIP-T48G IP Phone
To configure incoming/outgoing call lookup and update time interval via web user
interface:
1.
Click on Directory->Remote Phone Book.
2.
Select Enabled from the pull-down list of Incoming/Outgoing Call Lookup.
3.
Enter the desired refresh period in the Update Time Interval(Seconds) field.
The default value is 21600 seconds.
4.
Click Confirm to accept the change.
The SIP-T48G IP phone maintains call history lists of Missed calls, Placed calls, Received
calls and Forwarded calls. Call history list supports up to 400 entries. You can view call
history, place a call, add a contact or delete an entry from the call history list.
History record feature is enabled by default, if you don’t want to save the call history,
you can disable the feature.
To disable history record via phone user interface:
1.
70
Tap
->Features->General.
Customizing Your Phone
2.
Tap the Off radio box of the History Record field.
3.
Tap the Save soft key to accept the change or
to cancel.
To view call history:
1.
Tap
.
The touch screen displays all call records.
2.
Tap
or
to turn pages.
You can also press
or
to switch pages.
You can tap Missed Calls, Placed Calls, Received Calls or Forwarded Calls to view
entries in each call list directly.
3.
Tap
after the desired entry.
The detailed information of the entry appears on the touch screen.
To place a call from the call history list:
1.
Tap
.
The touch screen displays all call records.
2.
Tap
or
to turn pages.
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User Guide for the SIP-T48G IP Phone
You can also press
or
to switch pages.
You can tap Missed Calls, Placed Calls, Received Calls or Forwarded Calls to view
entries in each call list directly.
3.
Tap the desired entry.
To add a contact to the blacklist directory from the call history list:
1.
Tap
.
The touch screen displays all call records.
2.
Tap
or
to turn pages.
You can also press
or
to switch pages.
You can tap Missed Calls, Placed Calls, Received Calls or Forwarded Calls to view
entries in each call list directly.
3.
Tap
after the desired entry.
4.
Tap Blacklist.
5.
Enter the desired values in the corresponding fields.
6.
Tap the Save soft key.
For more information, refer to Contact Management on page 45.
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Customizing Your Phone
To delete an entry from the call history list:
1.
Tap
.
The touch screen displays all call records.
2.
Tap
or
to turn pages.
You can also press
or
to switch pages.
You can tap Missed Calls, Placed Calls, Received Calls or Forwarded Calls to view
entries in each call list directly.
3.
Tap
after the desired entry.
4.
Tap Delete.
The touch screen prompts the following warning:
5.
Tap OK to confirm the deletion or Cancel to cancel.
To delete all entries from the call history list:
1.
Tap
.
The touch screen displays all call records.
2.
Tap
or
to turn pages.
You can also press
or
to switch pages.
You can tap Missed Calls, Placed Calls, Received Calls or Forwarded Calls to view
entries in each call list directly.
3.
Tap Setting.
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User Guide for the SIP-T48G IP Phone
4.
Tap the checkbox of Select All.
5.
Tap Delete.
The touch screen prompts the following warning:
6.
Tap OK to confirm the deletion or Cancel to cancel.
If you want to use a wired headset, physically connect your headset to the phone and
activate the headset mode for use. For more information on physically connecting a
headset, refer to Phone Installation on page 16.
If you want to use a wireless headset, insert the Bluetooth USB dongle BT40 into the USB
port on the back of the phone. For more information on using a Bluetooth headset, refer
to Bluetooth on page 77.
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Customizing Your Phone
This section provides an introduction to wired headset use.
Note
If both a Bluetooth headset and a wired headset are connected, only the Bluetooth
headset can be used.
To activate the headset mode:
1.
Press
on the phone.
The HEADSET key LED illuminates solid green, and the icon
appears on the
status bar of the touch screen when the headset mode is activated. When you tap
the line key or the Answer soft key to answer an incoming call, the call is connected
to your headset automatically. For more information on using the headset to answer
a call, refer to Answering Calls on page 118.
With the handset on-hook, enter the desired number and tap Send, the phone will
then place a call using the headset automatically. For more information on using the
headset to place a call, refer to Placing Calls on page 116.
To deactivate the headset mode:
1.
Press
again on the phone.
The HEADSET key LED goes out, and the icon
disappears from the touch screen
when the headset mode is deactivated.
You can use headset in priority when headset prior feature is enabled. This feature is
especially useful for permanent or full-time headset users.
To enable headset prior via web user interface:
1.
Click on Features->General Information.
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User Guide for the SIP-T48G IP Phone
2.
Select Enabled from the pull-down list of Headset Prior.
3.
Click Confirm to accept the change.
To use headset prior, you should activate the headset mode in advance:
1.
Physically connect the headset.
2.
Press
to activate the headset mode.
If headset prior is enabled, the headset mode will not be deactivated until you press the
HEADSET key again.
Note
If headset prior is disabled, the headset mode can be deactivated by pressing the
Speakerphone key or the HEADSET key.
Headset prior is configurable via web user interface only.
You can use two headsets when dual headset feature is enabled. To use this feature,
you must physically connect headsets to the headset jack and handset jack respectively.
Once the phone connects to a call, the headset connected to the headset jack will have
full-duplex capabilities, while the one connected to the handset jack will only be able to
listen.
To enable dual headset via web user interface:
1.
76
Click on Features->General Information.
Customizing Your Phone
Note
2.
Select Enabled from the pull-down list of Dual-Headset.
3.
Click Confirm to accept the change.
Dual headset is configurable via web user interface only.
The SIP-T48G IP phone supports Bluetooth. Bluetooth enables low-bandwidth wireless
connections within a range of 10 meters (32 feet). The best performance is in the 1 to 2
meter (3 to 6 feet) range.
You can activate/deactivate the Bluetooth mode on the phone, and then pair and
connect the Bluetooth headset with your phone. You can pair up to 30 Bluetooth
headsets with your phone. However, only one headset can be connected at a time. You
can also disconnect and delete your Bluetooth headset from the phone.
Note
Ensure that the Bluetooth USB dongle BT40 is properly connected to the USB port on the
back of the phone. For more information, refer to Phone Installation on page 16.
To activate the Bluetooth mode via phone user interface:
1.
Tap
->Basic->Bluetooth.
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User Guide for the SIP-T48G IP Phone
2.
Tap the On radio box of the Bluetooth field.
The IP phone scans the available Bluetooth headset automatically.
The touch screen displays the Bluetooth device information (device name and MAC
address).
Before you pair a Bluetooth headset, check the indicator on the Bluetooth headset
to make sure that the Bluetooth headset is discoverable. For more information, refer
to the documentation from the Bluetooth headset manufacturer.
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Customizing Your Phone
When you insert Bluetooth USB dongle BT40 into the USB port on the back of the phone,
the touch screen prompts “Adapter has been added, scanning the Bluetooth devices
right now?”. You can tap OK to activate Bluetooth mode directly and then scan
Bluetooth devices automatically.
To activate Bluetooth mode via web user interface: Features->Bluetooth.
To pair and connect your Bluetooth headset to your phone:
1.
Tap
->Basic->Bluetooth.
2.
Tap the Bluetooth device to connect the Bluetooth headset to your phone.
If there are no Bluetooth devices available on the touch screen, tap the Scan soft
key to search for the Bluetooth device again.
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User Guide for the SIP-T48G IP Phone
3.
Enter the PIN in the prompted Password field.
The default PIN is “0000” or “1234”.
4.
Tap the OK soft key.
The Bluetooth headset is then automatically connected to your phone. The touch
screen displays as below:
The Bluetooth icon
80
appears on the touch screen.
Customizing Your Phone
With the Bluetooth headset paired and connected, you can use the Bluetooth
headset to place and answer calls. For more information, refer to the
documentation from the Bluetooth headset manufacturer.
To view the Bluetooth headset information:
1.
Tap
->Basic->Bluetooth.
2.
Tap the On radio box of the Bluetooth field.
The touch screen displays a list of Bluetooth headsets.
3.
You can view the Bluetooth headset information from the Bluetooth devices field.

Device Name: the name of the Bluetooth headset.

MAC Address: the MAC address of the Bluetooth headset.

Connection: the connection status of Bluetooth headset with your phone.
To edit device information via phone user interface:
1.
Tap
->Basic->Bluetooth.
2.
Tap the Edit My Device Information field.
The touch screen displays the device name and MAC address. The MAC address
cannot be edited.
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User Guide for the SIP-T48G IP Phone
3.
Enter the desired name in the Device Name field.
The default device name is “Yealink-T48G”.
4.
Tap the Save soft key to accept the change or
to cancel.
The preconfigured Bluetooth device name will display in scanning list of other
device.
You can disconnect the Bluetooth headset from your phone. After you disconnect the
Bluetooth headset, it will still remain paired and be displayed in the Bluetooth Devices
list. So you can easily connect it to your phone again.
To disconnect your Bluetooth headset from your phone:
1.
Tap
->Basic->Bluetooth.
2.
Tap the connected Bluetooth headset.
The Bluetooth headset is disconnected. To connect it to your phone again, tap the
Bluetooth headset again.
You can delete your Bluetooth headset from your phone. When you delete the Bluetooth
headset, it disappears from the Bluetooth devices list. To connect it to your phone again,
you need to scan it first, and then connect it again.
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Customizing Your Phone
To delete your Bluetooth headset from your phone:
1.
Tap
2.
Tap
->Basic->Bluetooth.
after the Bluetooth headset you want to delete.
The touch screen prompts the following warning “Delete selected item?”.
3.
Tap OK to confirm the deletion or Cancel to cancel.
You can also delete all headsets by tapping the Delete All soft key.
To deactivate the Bluetooth mode via phone user interface:
1.
Tap
->Basic->Bluetooth.
2.
Tap the Off radio box of the Bluetooth field.
The Bluetooth icon
disappears from the touch screen.
If a Bluetooth headset is paired and connected, and then you deactivate the Bluetooth
mode, it will disappear from the Bluetooth Devices list. The Bluetooth headset won’t be
connected anymore, but it will still be paired.
Bluetooth mode is configurable via web user interface at the path Features->Bluetooth.
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User Guide for the SIP-T48G IP Phone
Wi-Fi is a popular wireless networking technology that uses radio waves to provide
wireless high-speed Internet and network connections. You can activate/deactivate the
Wi-Fi mode on the IP phone, and then connect your phone to the desired wireless
network.
Note
Ensure that the Wi-Fi USB Dongle WF40 is properly connected to the USB port on the back
of the phone. For more information, refer to Phone Installation on page 16.
To activate the Wi-Fi mode via phone user interface:
1.
Tap
->Basic->Wi-Fi.
2.
Tap the On radio box of the Wi-Fi field.
The IP phone scans the available wireless network in your area.
When Wi-Fi USB dongle WF40 is connected to the USB port on the back of the phone, the
screen will prompt “Wi-Fi adapter has added, scanning the Wi-Fi devices right now?”. You
can tap OK to activate Wi-Fi mode directly and scan Wi-Fi devices automatically.
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Customizing Your Phone
To manually connect to a wireless network via phone user interface:
1.
Tap
->Basic->Wi-Fi.
2.
Tap the available wireless network to connect to your phone.
If there is no wireless network available on the touch screen, tap the Scan soft key
to search for the wireless network again.
3.
(Optional.) If the network is secure, enter its password in the PIN field.
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User Guide for the SIP-T48G IP Phone
4.
Tap OK.
Once the connection has completed successfully, the prompt “Connect Success.”
appears at the end of the SSID.
The Wi-Fi icon
Note
appears on the touch screen.
For more information on the password of the wireless network, contact your system
administrator.
If your gateway/router supports WPS (Wi-Fi Protected Setup), you can use this method to
set up your wireless connection.
Two methods supported by the IP phone in the Wi-Fi protected setup:

Push Button Configuration (PBC): The user simply has to press WPS key on both the
IP phone and gateway/router to connect.

Personal Identification Number (PIN): The user has to enter a PIN generated
randomly by the IP phone on the gateway/router to connect.
To connect to the wireless network using PBC method:
1.
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Tap
->Basic->Wi-Fi.
Customizing Your Phone
2.
Tap the On radio box of the Wi-Fi field.
The IP phone scans the available wireless network in your area.
3.
Tap the WPS soft key.
The touch screen prompts “WPS has opened, please connect in 120s.”.
4.
Long press the WPS key on your gateway/router.
Once WPS setup has completed successfully, the touch screen will prompt “Connect
Success.”.
To connect to the wireless network using PIN method:
1.
Tap
->Basic->Wi-Fi.
2.
Tap the On radio box of the Wi-Fi field.
The IP phone scans the available wireless network in your area.
3.
Tap the WPS-PIN soft key.
The touch screen pops up a prompt containing a randomly generated PIN.
4.
Tap OK.
The touch screen prompts “Please input below PIN code on your Wi-Fi router and
then press OK to start connecting: xxx”.
5.
Log into your gateway/router’s web interface, and configure it to search the clients.
For more information, refer to the documentation from the gateway/router
manufacturer.
Once WPS-PIN setup has completed successfully, the gateway/router’s web
interface will prompt success.
To view the connected wireless network information via phone user interface:
1.
Tap
->Basic->Wi-Fi.
2.
Tap the Wireless Statues field.
The touch screen displays the wireless statues and other wireless network
information.
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User Guide for the SIP-T48G IP Phone
To connect to a hidden wireless network via phone user interface:
1.
Tap
->Basic->Wi-Fi.
2.
Tap the Add soft key.
3.
Use the WLAN settings obtained from your gateway/router to configure this WLAN
Profile on the IP phone. Do the following:
a)
If you select None or WEP from the pull-down list of Security Mode:
Enter the profile name, SSID, WPA shared key in the corresponding fields.
b)
If you select WPA PSK or WPA2 PSK from the pull-down list of Security Mode:
Select the desired Cipher type (TKIP, AES or TKIP+ AES) from the pull-down list
of Cipher Type.
Enter the profile name, SSID, WPA shared key in the corresponding fields.
4.
Tap the Save soft key to accept the change or
to cancel.
The connected wireless networks will be saved to the storage network list. The storage
network list can store up to 5 wireless networks, you can specify the priority to connect to
the corresponding wireless network.
To view the storage network via phone user interface:
1.
Tap
->Basic-> Wi-Fi.
2.
Tap the The storage network field.
You can tap the desired wireless network to connect. You can also tap
to edit or
delete the wireless network, or change the priority of wireless network.
To disconnect wireless network via phone user interface:
1.
Tap
->Basic->Wi-Fi.
2.
Tap the connected wireless network.
The wireless network is disconnected. To connect it to your phone again, tap the
wireless network again.
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Customizing Your Phone
To deactivate the Wi-Fi mode via phone user interface:
1.
Tap
->Basic->Wi-Fi.
2.
Tap the Off radio box of the Wi-Fi field.
The Wi-Fi icon
disappears from the touch screen.
Wi-Fi is configurable via web user interface at the path Network->Wi-Fi.
There are three types of DSS keys: Line Keys, Programable Keys and Ext Keys. Details
will be introduced in the following. The SIP-T48G IP phone supports 29 line keys and 13
programable keys. For more information on DSS key icon indicators, refer to Icon
Instructions on page 3.
You can assign predefined functionalities to line keys. You can also define a label for a
line key feature which will appear on the touch screen. Line keys allow you to quickly
access features such as recall and voice mail. The line key can indicate the monitored
status when the line keys are assigned with particular features, such as BLF. The default
key type of line key 1-16 is Line. The default key type of line key 17-29 is N/A, which
indicates that this line key provides no functionality until configuration.
To assign functionality to a line key via phone user interface:
1.
Tap
->Features->DSS Keys.
2.
Tap the desired line key.
3.
Select the desired key type from the Type field.
4.
(Optional.) Select the desired key event type from the Key Type field.
5.
(Optional.) Select the desired line from the Account ID field.
6.
(Optional.) Enter the string that will appear on the touch screen in the Label field.
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User Guide for the SIP-T48G IP Phone
7.
(Optional.) Enter the corresponding value in the Value field.
8.
(Optional.) Enter the corresponding value in the Extension field.
9.
Tap the Save soft key to accept the change or
to cancel.
You can also tap DSS Key on the idle screen, and then tap the desired line key to assign
functionality to it.
Line key is configurable via web user interface at the path DSSKey->Line Key.
Note
When the phone is idle, you can also long tap the line key to configure it directly on the
phone.
You can specify labels for some key features, which will be displayed on the idle touch
screen. If the length of the label exceeds the maximum display length, the phone only
displays the first few characters. You can configure the phone to display more
characters via label length feature.
The following figure shows an example of label display when the label length feature is
set to extended:
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Customizing Your Phone
The following figure shows an example of label display when the label length feature is
disabled:
To configure the label length via web user interface:
1.
Click on DSSKey->Line Key.
2.
Select Extended from the pull-down list of Label Length.
3.
Click Confirm to accept the change.
Note
Label length feature is configurable via web user interface only.
Line key features are explained in the following subchapters in detail:

Line

Speed Dial

Voice Mail

Direct Pickup
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User Guide for the SIP-T48G IP Phone

Group Pickup

DTMF

Prefix

Local Group

XML Group

XML Browser

LDAP

SMS

Conference

Forward

Transfer

Hold

DND

Group Listening

Zero Touch

URL

Phone Lock

Directory
For the features not listed above, refer to Basic Call Features on page 115 and
Advanced Phone Features on page 157. For more information, contact your system
administrator.
Line
You can use this key feature to accept incoming calls, place active calls on hold or
resume a held call. It performs in the same way as a hard line key.
Dependencies: Type (Line)
Account ID (the account this feature will be applied to)
Label (key label displayed on the touch screen)
Usage: When the phone receives an incoming call,
1.
Tap the line key to accept the incoming call.
2.
Tap the line key to place a new call and the active call is placed on hold.
3.
Tap the line key again to resume the held call.
Speed Dial
You can use this key feature to speed up dialing the numbers frequently used or hard to
remember.
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Customizing Your Phone
Dependencies: Type (Speed Dial)
Account ID (the account this feature will be applied to)
Label (key label displayed on the touch screen)
Value (the number you want to dial out)
Usage: Tap the speed dial key to dial out the number specified in the Value field, using
the account selected from the Account ID field.
Voice Mail
You can use this key feature to quickly connect voice mail. For more information, refer to
Voice Mail on page 204.
Dependencies: Type (Key Event)
Key Type (Voice Mail)
Account ID (the account this feature will be applied to)
Label (key label displayed on the touch screen)
Value (the voice mail access code)
Usage: Tap the voice mail key to dial out the voice mail access code. Then follow the
voice prompt to listen to the voice mails.
Direct Pickup
You can use this key feature to answer someone else’s incoming call on the phone.
Dependencies: Type (Key Event)
Key Type (DPickup)
Account ID (the account this feature will be applied to)
Label (key label displayed on the touch screen)
Value (the directed pickup code followed by the target phone number)
Usage: Tap the directed pickup key on your phone when the target phone number
receives an incoming call. The call is then answered on your phone.
Group Pickup
You can use this key feature to answer incoming calls in a group that is associated with
their own group.
Dependencies: Type (Key Event)
Key Type (GPickup)
Account ID (the account this feature will be applied to)
Label (key label displayed on the touch screen)
Value (the group pickup code)
Usage: Tap the group pickup key on your phone when a phone number in the group
receives an incoming call. The call is answered on your phone.
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User Guide for the SIP-T48G IP Phone
DTMF
You can use this key feature to send the specification of arbitrary key sequences via
DTMF.
Dependencies: Type (Key Event)
Key Type (DTMF)
Label (key label displayed on the touch screen)
Value (DTMF sequence)
Note
DTMF sequence can only contain "0-9", "*", "#".
Usage: Tap the DTMF key during an active call to send the key sequence specified in the
Value field.
Prefix
You can use this key feature to add a specified prefix number before the dialing number.
Dependencies: Type (Key Event)
Key Type (Prefix)
Label (key label displayed on the touch screen)
Value (the prefix number)
Usage: Tap the prefix key when the phone is idle, the phone will then enter the
pre-dialing screen and display the prefix number that you specified in the Value field.
You can enter the remaining digits and then dial out.
Local Group
You can use this key feature to quickly access a contact group in the local directory. For
more information, refer to Local Directory on page 47.
Dependencies: Type (Key Event)
Key Type (Local Group)
Local Group (the contact group name you want to access)
Label (key label displayed on the touch screen)
Usage: Tap the local group key to access the contact group specified in the Local Group
field.
XML Group
You can use this key feature to quickly access a remote group in your remote phone
book. You should configure a remote phone book in advance. For more information,
refer to Remote Phone Book on page 67.
Dependencies: Type (Key Event)
Key Type (XML Group)
XML Group (the remote group name you want to access if the remote
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Customizing Your Phone
phone book is configured)
Label (key label displayed on the touch screen)
Usage: Tap the XML group key to access the remote group specified in the XML Group
field.
XML Browser
You can use this key feature to quickly access an XML browser. The XML browser allows
you to create custom services which meet your functional requirements on the server.
You can customize practical applications, such as weather report, stock information,
Google search, etc.
Dependencies: Type (Key Event)
Key Type (XML Browser)
Label (key label displayed on the touch screen)
Value (the access URL for XML browser)
Usage: Tap the XML browser key to access the XML browser specified in the Value field.
LDAP
You can use this key feature to quickly access a LDAP search screen.
Dependencies: Type (Key Event)
Key Type (LDAP)
Label (key label displayed on the touch screen)
Usage:
1.
Tap the LDAP key to access the LDAP search screen.
2.
Enter a few continuous characters of the contact name or continuous numbers of the
contact number using the keypad.
The contacts whose name or phone number matches the characters entered will
appear on the touch screen.
SMS
You can use this key feature to quickly access text message. For more information, refer
to Short Message Service (SMS) on page 201.
Dependencies: Type (Key Event)
Key Type (SMS)
Label (key label displayed on the touch screen)
Usage: Tap the DSS key when the phone is idle to access text message.
Conference
You can use this key feature to set up a conference call. For more information, refer to
Conference on page 146.
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User Guide for the SIP-T48G IP Phone
Dependencies: Type (Key Event)
Key Type (Conference)
Label (key label displayed on the touch screen)
Value (the number you want to add to the conference)
Usage: Tap the conference key during an active call to set up a conference with the
number specified in the Value field.
Note
If the Value field is left blank, the conference key performs the same as the Conference
soft key during a call.
Forward
You can use this key feature to forward an incoming call to someone else. For more
information, refer to Call Forward on page134.
Dependencies: Type (Key Event)
Key Type (FWD)
Label (key label displayed on the touch screen)
Value (the number you want to forward to)
Usage: Tap the forward key to forward an incoming call to the number specified in the
Value field.
Note
If the Value field is left blank, the forward key performs the same as FWD when receiving
an incoming call.
Transfer
When there is an active call on the phone, you can use this key feature to handle the call
differently depending on the transfer mode assigned to the DSS key.
Dependencies: Type (Key Event)
Key Type (Transfer)
Label (key label displayed on the touch screen)
Value (the number you want to transfer to)
Usage:

When the transfer mode on DSS key is Blind Transfer, tap the transfer key to
complete the blind transfer to the number specified in the Value field.

When the transfer mode on DSS key is Attended Transfer, tap the transfer key to
dial out the number specified in the Value field, and then perform the attended or
semi-attended transfer.
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Customizing Your Phone
When the transfer mode on DSS key is New Call, tap the transfer key to place a

new call to the number specified in the Value field.
Note
Transfer mode via DSS key is configurable via web user interface at the path
Features->Transfer->Transfer Mode via Dsskey.
If the Value field is left blank, the transfer key performs the same as the TRANSFER key or
the Transfer soft key during a call. For more information, refer to Call Transfer on page
143.
Hold
You can use this key feature to place an active call on hold or retrieve a held call.
Dependencies: Type (Key Event)
Key Type (Hold)
Label (key label displayed on the touch screen)
Usage:
1.
Tap the hold key during an active call to place the call on hold.
2.
Tap the hold key again to retrieve the held call.
DND
You can use this key feature to activate or deactivate DND. You can also use this key
feature to access the custom DND screen. For more information, refer to Do Not Disturb
(DND) on page 129.
Dependencies: Type (Key Event)
Key Type (DND)
Label (key label displayed on the touch screen)
Usage:
When DND is in phone mode:
1.
Tap the DND key to activate DND.
2.
Tap the DND key again to deactivate DND.
When DND is in custom mode:
1.
Tap the DND key to access the custom DND screen. You can activate or deactivate
DND for one or all accounts.
Group Listening
You can use this key feature to activate the Speakerphone and Handset/Headset mode
at the same time. It is suitable for group conversations which have more than one
person at one side. You are able to speak and listen through the handset/headset, while
the others nearby can only listen through the speaker.
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User Guide for the SIP-T48G IP Phone
Dependencies: Type (Key Event)
Key Type (Group Listening)
Label (key label displayed on the touch screen)
Usage:
1.
During a call, tap the group listening key to activate the group listening mode.
You can then speak and listen through the handset/headset, while other people at your
side can only listen through the speaker at the same time.
2.
Tap the group listening key again to deactivate the group listening mode.
Zero Touch
You can use this key feature to quickly configure auto provision and network
parameters.
Dependencies: Type (Key Event)
Key Type (Zero Touch)
Label (key label displayed on the touch screen)
Usage:
1.
Tap the zero touch key to access the zero touch screen.
2.
Tap the OK soft key within a few seconds.
3.
Configure the network parameters in the corresponding fields.
4.
Tap the Next soft key.
5.
Configure the auto provision parameters in the corresponding fields.
6.
Tap the Next soft key.
The phone will reboot to update configurations.
URL
You can use this key feature to trigger the phone to send an HTTP GET request
containing a specific URL.
Dependencies: Type (URL)
Label (key label displayed on the touch screen)
URL (the URL contained in the HTTP GET request)
Usage: Tap the URL key to trigger the phone to send an HTTP GET request containing the
URL specified in the URL field.
Phone Lock
You can use this key feature to immediately lock your phone instead of long
pressing
. For more information, refer to Phone Lock on page 39.
Dependencies: Type (Phone Lock)
Label (key label displayed on the touch screen)
Usage: When the phone lock feature is enabled, tap the DSS key to immediately lock
your phone instead of long pressing
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.
Customizing Your Phone
Directory
You can use this key feature to easily access frequently used lists. For more information,
refer to Directory on page 45.
Dependencies: Type (Key Event)
Key Type (Directory)
Label (key label displayed on the touch screen)
Usage: Tap the directory key to immediately access to frequently used lists.
Note
The directory key performs the same function as the Directory soft key when the phone is
idle.
You can customize the soft keys, navigation keys and function keys.
To customize programable keys via web user interface:
1.
Click on DSSKey->Programable Key.
2.
Customize specific features for these keys.
3.
(Optional.) Enter the string that will appear on the touch screen in the Label field.
Label is configurable only when customizing SoftKey (1-4).
4.
Click Confirm to accept the change.
You can click Reset to default to reset custom settings to defaults.
Then you can press the keys on the phone to perform the features you configured.
For example:
Switch Account Up
You can press Switch Account Up key to change the default account.
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User Guide for the SIP-T48G IP Phone
Dependencies: Type (Switch Account Up)
Usage: Press the Switch Account Up key to scroll up the account list to select the desired
default account.
Switch Account Down
You can press Switch Account Down key to change the default account.
Dependencies: Type (Switch Account Down)
Usage: Press the Switch Account Down key to scroll down the account list to select the
desired default account.
Note
Programable keys are configurable via web user interface only.
If EXP40 is connected to the phone, you can customize features for Ext keys.
To customize Ext keys via web user interface:
1.
Click on DSSKey->Ext Key.
2.
Customize specific features for these keys.
3.
Click Confirm to accept the change.
For more information, refer to Yealink EXP40 User Guide.
Note
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Ext keys are configurable via web user interface only.
Customizing Your Phone
You can register one or multiple accounts on the SIP-T48G IP phone. You can also
configure each line key to associate with an account or configure multiple line keys to
associate with an account.
To register an account via phone user interface:
1.
Tap
->Advanced (default password: admin) ->Account.
2.
Tap the desired account.
3.
Tap the gray box of the Activation field, and then select Enabled from the pull-down
list.
4.
Enter the desired value in the Label, Display Name, Register Name, User Name,
Password and SIP Server1/2 field respectively. Contact your system administrator for
more information.
5.
If you use the outbound proxy servers, do the following:
1)
Tap the gray box of the Outbound Status field, and then select Enabled from
the pull-down list.
2)
Enter the desired value in the Outbound Proxy1/2 and Proxy Fallback Interval
field respectively. Contact your system administrator for more information.
6.
Tap the Save soft key to accept the change or
to cancel.
You can repeat steps 2 to 6 to register more accounts.
The following figures demonstrate single or multiple accounts registered on the phone:
Single account:
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User Guide for the SIP-T48G IP Phone
Multiple accounts:
To disable an account via phone user interface:
1.
Tap
->Advanced (default password: admin) ->Account.
2.
Tap the desired account.
3.
Tap the gray box of the Activation field, and then select Disabled from the
pull-down list.
4.
Tap the Save soft key to accept the change or
to cancel.
Account registration is configurable via web user interface at the path
Account->Register.
To configure the default account via phone user interface:
1.
Tap
->Features->Default Account.
2.
Tap the gray box of the Default Account field, and then select the desired account
from the pull-down list.
3.
Tap the Save soft key to accept the change or
to cancel.
The label of the default account is displayed on the left of the status bar. The IP phone
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Customizing Your Phone
will use this account by default when dialing out.
You can tap the label of the default account, and then tap the desired account to be the
new default account. You can also press
or
to select the desired account as the
default account.
You can configure multiple line keys to associate with an account. This enhances call
visualization and simplifies call handling.
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User Guide for the SIP-T48G IP Phone
If this is the case, the touch screen will resemble the following figure:
Incoming calls to this account will be distributed evenly among the available line keys.
Outgoing calls will be distributed similarly.
Your phone can be configured to have a combination of accounts with a single line key
and accounts with multiple line keys.
Dial plan is a string of characters that governs the way your SIP-T48G IP phone
processes the inputs received from your phone keypad. The SIP-T48G IP phone supports
the following dial plan features:

Replace Rule

Dial-now

Area Code

Block Out
Basic expression syntaxes you need to know:
The dot "." can be used as a placeholder or multiple placeholders for
.
any character. Example:
"12." would match "123", "1234", "12345", "12abc", etc.
x
An "x" can be used as a placeholder for any character. Example:
"12x" would match "121", "122", "123", "12a", etc.
Numeric ranges are allowed within the brackets: Digit “-” Digit.
-
Example:
“[5-7]” would match the number”5”, ”6”or ”7”.
The square brackets "[]" can be used as a placeholder for a single
[]
character which matches any of a set of characters. Example:
"91[5-7]1234" would match "9151234", "9161234", "9171234".
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Customizing Your Phone
The parentheses "( )" can be used to group together patterns, for
()
instance, to logically combine two or more patterns. Example:
"([1-9])([2-7])3" would match "923", "153", "773", etc.
The “$” should be followed by the sequence number of a parenthesis.
The “$” plus the sequence number means the whole character or
characters placed in the parenthesis. The number directs to the right
parenthesis when there are more than one. Example:
$
A replace rule configuration, Prefix: "001(xxx)45(xx)", Replace:
"9001$145$2". When you dial out "0012354599" on your phone, the IP
phone will replace the number with "90012354599". “$1” means 3 digits
in the first parenthesis, that is, “235”. “$2” means 2 digits in the second
parenthesis, that is, “99”.
Note
Dial plan is configurable via web user interface only.
You can configure one or more replace rules (up to 100) to remove the specified string
and replace it with another string. You can configure a pattern with wildcards (refer to
the expression syntax in the table above), so that any string that matches the pattern
will be replaced. This feature is convenient for you to dial out a long number. For
example, a replace rule is configured as "Prefix: 1" and "Replace: 1234", when you try to
dial out the number “1234”, you just need to enter “1” on the phone and then tap Send.
To add a replace rule via web user interface:
1.
Click on Settings->Dial Plan->Replace Rule.
2.
Enter the string (e.g., 1) in the Prefix field.
3.
Enter the string (e.g., 1234) in the Replace field.
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User Guide for the SIP-T48G IP Phone
4.
Enter the desired line ID in the Account field or leave it blank.
5.
Click Add to add the replace rule.
When you enter the number “1” using the keypad and then tap Send, the phone will
dial out “1234” instead.
The valid values for the Account field can be one or more digits among 1-16. Every two
digits must be separated by a comma. For example, when you enter the value “1, 2” in
the Account field, this replace rule will apply to account1 and account2.
Note
If you leave the Account field blank or enter 0, the replace rule will apply to all accounts.
To edit a replace rule via web user interface:
1.
Click on Settings->Dial Plan->Replace Rule.
2.
Select the desired replace rule by checking the checkbox.
3.
Edit the values in the Prefix and Replace fields.
4.
Enter the desired line ID in the Account field or leave it blank.
5.
Click Edit to accept the change.
To delete one or more replace rules via web user interface:
1.
Click on Settings->Dial Plan->Replace Rule.
2.
Select one or more replace rules by checking the checkbox(es).
3.
Click Del to delete the replace rule(s).
You can configure one or more dial-now rules (up to 100) on your phone. When the
dialed number matches the dial-now string, the number will be dialed out automatically.
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Customizing Your Phone
For example, a dial-now rule is configured as "2xx", any entered three-digit string
beginning with 2 will then be dialed out automatically on the phone.
To add a dial-now rule via web user interface:
1.
Click on Settings->Dial Plan->Dial-now.
2.
Enter the desired value (e.g., 2xx) in the Rule field.
3.
Enter the desired line ID in the Account field or leave it blank.
For more information on the valid values for the Account field, refer to Replace Rule
on page 105.
4.
Click Add to add the dial-now rule.
When you enter the number “234” using the keypad, the phone will dial out “234”
automatically without the pressing of any key.
Note
You can also edit or delete the dial-now rule, refer to Replace Rule on page 105 for more
information.
Delay Time for Dial-Now Rule
You can configure the delay time for dial-now rules. That is, you can configure your
phone to automatically dial out the phone number which matches a dial-now rule, after
the designated delay time.
To configure the delay time for dial-now rule via web user interface:
1.
Click on Features->General Information.
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User Guide for the SIP-T48G IP Phone
2.
Enter the time between 0 and 14 (seconds) in the Time-Out for Dial-Now Rule field.
The default value is “1”.
3.
Note
Click Confirm to accept the change.
Delay time for dial-now rule is configurable via web user interface only.
Area codes are also known as Numbering Plan Areas (NPAs). They usually indicate
geographical areas in a country. This feature is necessary when dialing a phone
number outside the code area. For example, an area code is configured as "Code: 0592,
Min Length: 1, Max Length: 15". When you dial out the number "56789" (the length of the
number is between 1 and 15), the phone will add the area code and dial out the
number "059256789". You can only configure one area code rule on your phone.
To configure the area code and lengths via web user interface:
1.
Click on Settings->Dial Plan->Area Code.
2.
Enter the desired values in the Code, Min Length (1-15) and Max Length (1-15)
fields.
3.
108
Enter the desired line ID in the Account field or leave it blank.
Customizing Your Phone
For more information on the valid values for the Account field, refer to Replace Rule
on page 105.
4.
Note
Click Confirm to accept the change.
The default value of minimum and maximum length is 1 and 15 respectively.
You can block some specific numbers (up to 10) from being dialed on your phone. When
you dial a block out number on your phone, the dialing will fail and the touch screen will
prompt “Forbidden Number”.
To add a block out number via web user interface:
1.
Click on Settings->Dial Plan->Block Out.
2.
Enter the desired value in the BlockOut Number field.
3.
Enter the desired line ID in the Account field or leave it blank.
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User Guide for the SIP-T48G IP Phone
For more information on the valid values for the Account field, refer to Replace Rule
on page 105.
4.
Note
Click Confirm to add the block out number.
Block out number is configurable via web user interface only.
Public telephone networks in countries around the world have a single emergency
telephone number (emergency services number), that allows a caller to contact local
emergency services for assistance when necessary. The emergency telephone number
may differ from country to country. It is typically a three-digit number so that it can be
easily remembered and dialed quickly. Some countries have a different emergency
number for each of the different emergency services.
You can specify the emergency telephone numbers on the IP phone for contacting the
emergency services in an emergency situation. You can dial these numbers when the
phone is locked. For more information on phone lock, refer to Phone Lock on page 39.
Note
Contact your local phone service provider for available emergency numbers in your
area.
To specify emergency numbers via web user interface:
110
1.
Click on Features->Phone Lock.
2.
Enter the emergency number in the Emergency field.
Customizing Your Phone
For multiple emergency numbers, enter a comma between every two numbers. The
default emergency numbers are 112, 911, 110.
3.
Note
Click Confirm to accept the change.
Emergency number is configurable via web user interface only.
You can enable live dialpad feature on the SIP-T48G IP phone, which enables the IP
phone to automatically dial out a phone number without pressing the send key. You can
also configure a delay, and then the phone will dial out the phone number
automatically after the designated period of time.
To enable the live dialpad via web user interface:
1.
Click on Settings->Preference.
2.
Select Enabled from the pull-down list of Live Dialpad.
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User Guide for the SIP-T48G IP Phone
3.
Enter the desired delay time in the Inter Digit Time(1~14s) field.
The default delay time is 4s.
4.
Note
Click Confirm to accept the change.
Live dialpad is configurable via web user interface only.
You can dial a hotline number immediately upon lifting the handset, pressing the
Speakerphone key or tapping the line key. You can also configure a delay, and then the
phone will dial out the hotline number automatically after a designated period of time.
To configure the hotline number via phone user interface:
112
1.
Tap
->Features->Hot Line.
2.
Enter the desired number in the Number field.
Customizing Your Phone
3.
Enter the desired delay time in the Hotline Delay field.
The valid values range from 0 to 10 (seconds) and the default value is “4”.
4.
Tap the Save soft key to accept the change or
to cancel.
Hotline is configurable via web user interface at the path Features->General
Information.
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114
Basic Call Features
The SIP-T48G IP phone is designed to be easily used like a regular phone on a public
switched telephone network (PSTN). You can place calls, answer calls, transfer a call to
someone else, or conduct a conference call.
This chapter provides basic operating instructions for the SIP-T48G IP phone. Topics
include:

Placing Calls

Answering Calls

Ending Calls

Redialing Numbers

Recent Call In Dialing

Auto Answer

Auto Redial

Call Completion

Recall

Call Mute

Call Hold/Resume

Do Not Disturb (DND)

Call Forward

Call Transfer

Call Waiting

Conference

Call Park

Call Pickup

Anonymous Call

Anonymous Call Rejection
If you require additional information or assistance with your new phone, contact your
system administrator.
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You can place a call in one of three ways using your SIP-T48G IP phone:

Using the handset

Using the speakerphone

Using the headset
You can also dial the number first, and then choose the way you want to speak to the
other party.
You can also dial an entry/contact from call history, local directory or remote phone
book. For more information, refer to Contact Management on page 45 and Call History
Management on page 70.
During a call, you can alternate between Speakerphone, Headset, and Handset modes
by pressing the Speakerphone key, the HEADSET key, or by picking up the handset.
The call duration of the call and far-site’s information (name or phone number) are
visible on the touch screen. In the figure below, the call to “Tom” (the phone number:
1056) has lasted 4 seconds.
To place a call using the handset:
116
1.
Pick up the handset.
2.
Enter the desired number using the keypad.
Basic Call Features
You can enter the number using the keypad displayed on the touch screen.
3.
Press
,
, or tap Send.
The # key is configured as a send key by default. You can also set the * key as the send
key, or set neither. For more information, refer to the Key as Send on page 39.
You can also tap the History soft key or the Directory soft key to search for an entry or
contact after picking up the handset, and then tap the desired entry or contact to place
a call.
Note
You can also dial using the SIP URI or IP address. To obtain the IP address of a phone,
press the OK key when the phone is idle. The maximum SIP URI or IP address length is 32
characters. For example, SIP URI: 3606@sip.com, IP: 192.168.1.15.
Your phone may not support direct IP dialing. Contact your system administrator for more
information.
To place a call using the hands-free speakerphone mode:
Do one of the following:
-
With the handset on-hook, press
or tap the line key to obtain a dial tone.
Enter the desired number using the keypad or the on-screen keypad.
Press
-
,
or tap Send.
With the handset on-hook, enter the desired number using the keypad.
Press
,
,
or tap Send.
To place a call using the headset:
Do one of the following:
-
ith the optional headset connected, press
to activate the headset mode.
Tap the line key to obtain a dial tone.
Enter the desired number using the keypad or the on-screen keypad.
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User Guide for the SIP-T48G IP Phone
Press
-
,
, or tap Send.
With the optional headset connected, press
to activate the headset mode.
Enter the desired number using the keypad.
Press
Note
,
, or tap Send.
To permanently use the headset mode, refer to Headset Prior on page 75.
The SIP-T48G IP phone can handle multiple calls at a time. However, only one active call
(the call that has audio associated with it) can be in progress at any time. The SIP-T48G
IP phone can handle a maximum of 50 calls at one time.
To place multiple calls:
You can have more than one call on your SIP-T48G IP phone. To place a new call during
an active call, do one of the following:
-
Tap the line key. The active call is placed on hold.
Enter the desired number using the keypad or the on-screen keypad.
Press
-
,
Press
, or tap Send.
or tap the Hold soft key to place the original call on hold.
Tap the NewCall soft key.
Enter the desired number using the keypad or the on-screen keypad.
Press
,
, or tap Send.
You can tap the desired call, and then tap the Resume soft key to retrieve it.
Note
If multiple accounts are registered on the phone, you can first tap the desired line key on
the idle screen or tap the desired line from the status bar in dialing screen, and then you
can use the selected account to place a call.
When you are not in another call, you can answer a call in one of three ways:
Note

Using the handset

Using the speakerphone

Using the headset
You can reject incoming calls by pressing the X key or tapping the Reject soft key to stop
the phone from playing ring tone. You can also activate the Do Not Disturb mode to
reject the incoming calls without ringing on your phone. For more information, refer to Do
Not Disturb (DND) on page 129.
You can forward incoming calls to someone else by tapping the FWD soft key. For more
information, refer to Call Forward on page 134.
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Basic Call Features
Answering When Not in Another Call
Call duration and destination will always appear on the touch screen for the active call.
To answer a call using the handset:
1.
Pick up the handset.
To answer a call using the hands-free speakerphone mode:
Do one of the following:
-
Press
.
-
With the handset on-hook and the headset mode deactivated, tap the Answer soft
key.
-
With the handset on-hook and the headset mode deactivated, tap the line key with
the illuminating solid green icon indicator.
To answer a call using the headset:
Do one of the following:
-
Press
.
-
With the headset mode activated, tap the Answer soft key.
-
With the headset mode activated, tap the line key with the illuminating solid green
icon indicator.
Answering When in Another Call
If you have an active call, and an incoming call arrives on the phone. The incoming call
information is displayed on the touch screen.
1.
Press
or tap the Answer soft key.
The incoming call is answered and the original call is placed on hold.
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User Guide for the SIP-T48G IP Phone
To end a call:
Do one of the following:
If you are using the handset, press
-
, the EndCall soft key or hang up the
handset.
Note
-
If you are using the headset, press
or the EndCall soft key.
-
If you are using the speakerphone, press
,
or the EndCall soft key.
To end a call placed on hold, you can tap the EndCall soft key to end the call directly, or
tap the Resume soft key to resume the call before ending it.
To redial the last dialed number from your phone:
1.
Press
twice.
A call to your last dialed number is attempted.
To redial a previously dialed number from your phone:
1.
Press
when the phone is idle.
2.
Tap the desired entry from the placed calls list.
To view the placed calls list when the phone is on the pre-dialing interface, you should
enable recent call in dialing in advance.
To enable recent call in dialing via web user interface:
1.
120
Click on Directory->Setting.
Basic Call Features
2.
Select Enabled from the pull-down list of Recent Call In Dialing.
3.
Click Confirm to accept the change.
Note
Recent call in dialing is configurable via web user interface only.
To view placed calls list when the phone is on the pre-dialing interface:
1.
Pick up the handset, press the Speakerphone key or tap the line key.
The touch screen displays the placed calls list.
You can tap
or
to scroll through placed calls page by page.
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User Guide for the SIP-T48G IP Phone
You can also enter a few continuous characters of the contact name or continuous
numbers of the contact number (office, mobile or other number) to search from
placed calls list.
You can use auto answer feature to automatically answer an incoming call on a line.
Auto answer is configurable on a per-line basis.
To configure auto answer via phone user interface:
122
1.
Tap
->Features->Auto Answer.
2.
Tap the On radio box of the desired line.
3.
Tap the Save soft key to accept the change or
to cancel.
Basic Call Features
The
icon appears on the touch screen.
Auto answer is configurable via web user interface at the path Account->Basic.
Auto answer is only applicable when there is no other call in progress on the phone.
Note
You can enable auto redial to automatically redial a phone number when the called
party is busy. You can also configure the number of auto redial attempts and the time to
wait between redial attempts.
To configure auto redial via phone user interface:
1.
Tap
->Features->Auto Redial.
2.
Tap the On radio box of the Auto Redial field.
3.
Enter the desired time (in seconds) in the Redial Interval field.
The default value is “10”.
4.
Enter the desired number of redial attempts in the Redial Times field.
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User Guide for the SIP-T48G IP Phone
The default value is “10”.
5.
Tap the Save soft key to accept the change or
to cancel.
Auto redial is configurable via web user interface at the path Features->General
Information.
To use auto redial:
When the called party is busy, the following prompt will appear on the touch screen of
the phone:
1.
124
Tap the OK soft key to activate auto redial.
Basic Call Features
The touch screen prompts the following:
2.
Wait for the designated period of time or tap the OK soft key to redial the phone
number.
The phone will retry as many times as configured until the called party is idle.
You can use call completion to notify the caller who failed to reach a desired party when
the party becomes available to receive a call.
To enable call completion via phone user interface:
1.
Tap
->Features->Call Completion.
2.
Tap the On radio box of the Call Completion field.
3.
Tap the Save soft key to accept the change or
to cancel.
Call completion is configurable via web user interface at the path Features->General
Information.
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User Guide for the SIP-T48G IP Phone
To use call completion:
When the called party is busy, the following prompt will appear on the touch screen of
the phone:
1.
Tap OK, the phone will then returns to the idle screen and call completion will be
activated.
When the called party becomes idle, the following prompt will appear on the touch
screen of the phone:
1.
Note
Tap OK to redial the number.
Call completion is not available on all servers. For more information, contact your system
administrator.
You can tap a recall key to place a call back to the last incoming call.
126
Basic Call Features
To configure a recall key via phone user interface:
1.
Tap DSS Key.
2.
Tap the desired line key.
3.
Tap the gray box of the Type field, and then select Key Event from the pull-down list.
4.
Tap the gray box of the Key Type field, and then select ReCall from the pull-down
list.
5.
(Optional.) Enter the string that will appear on the touch screen in the Label field.
6.
Tap the Save soft key to accept the change or
to cancel.
Recall key is configurable via web user interface at the path DSSKey->Line key.
You can mute the microphone of the active audio device during an active call so that
the other party cannot hear you. Call mute applies to all modes (Handset, Headset and
Speakerphone).
To mute a call:
1.
Press
during an active call.
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User Guide for the SIP-T48G IP Phone
The touch screen indicates that the call is muted. The mute key LED illuminates solid
red when the call is muted.
To un-mute a call:
1.
Press
again to un-mute the call.
You can place an active call on hold. Only one active call can be in progress on the
phone at any time. Other calls can be made and received while placing the original
call on hold. When you place a call on hold, your IP PBX may play music to the other
party while waiting.
To place a call on hold:
1.
Press
or tap the Hold soft key during a call.
The touch screen indicates that the call is on hold.
Note
128
The phone will beep softly every 30 seconds to remind you that you still have a call on
hold.
Basic Call Features
To resume a held call:
1.
Press
or tap the Resume soft key.
Multiple Calls on Hold:
If multiple calls are placed on hold, do one of the following:
-
Tap the desired call, and then press
or tap the Resume soft key to retrieve it.
-
Tap the desired call, and then tap the corresponding line key to retrieve it.
You can use DND to reject incoming calls automatically on the phone. The prompt
message “n New Missed Call(s)” (“n” indicates the number of missed calls) will appear
on the touch screen, and callers will receive a busy message. All calls you receive while
DND is enabled are logged to your missed calls list.
Note
The prompt message will display only if Missed Call Log for the line is enabled. Missed
call log is configurable via web user interface at the path Account->Basic->Missed Call
Log.
Do not disturb is local to the phone, and may be overridden by the server settings. For
more information, contact your system administrator.
You can enable/disable DND for the phone system, or you can customize DND for each
or all accounts. Two DND modes:

Phone (default): DND is effective for the phone system.

Custom: DND can be configured for each or all accounts.
You can receive incoming calls from authorized numbers when DND is enabled.
To configure the DND mode via web user interface:
1.
Click on Features->Forward & DND.
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User Guide for the SIP-T48G IP Phone
Note
2.
In the DND block, mark the desired radio box in the Mode field.
3.
Click Confirm to accept the change.
DND mode is configurable via web user interface only.
To activate DND in phone mode:
1.
Tap
.
The
icon on the status bar indicates that DND is enabled.
Incoming calls will be rejected automatically and “n New Missed Call(s)” (“n”
indicates the number of missed calls. e.g., 1 New Missed Call(s)) will appear on the
touch screen.
Note
130
When DND and busy forward are enabled in phone mode, calls will be sent to the
configured destination number. For more information on busy forward, refer to Call
Forward on page 134.
Basic Call Features
To activate DND in custom mode for a specific account:
1.
Tap
.
The touch screen displays a list of accounts registered on the phone.
2.
Tap the desired account.
3.
Tap the On radio box of the DND Enable field.
4.
Tap the Save soft key to accept the change.
If you activate DND for the default account, the associated line icon will change
to
, and the
icon will appear on the status bar.
If you activate DND for the non-default account, only the associated line icon will
change to
.
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User Guide for the SIP-T48G IP Phone
Incoming calls on the specific line will be rejected automatically, and the touch
screen will prompt “n New Missed Call(s)” (“n” indicates the number of missed calls.
e.g., 1 New Missed Call(s)).
Note
When DND and busy forward are enabled for a specific account, calls from the specific
account will be sent to the configured destination number. For more information on busy
forward, refer to Call Forward on page 134.
To activate DND in custom mode for all accounts:
1.
Tap
.
The touch screen displays a list of accounts registered on the phone.
2.
Tap the All On soft key to activate DND for all accounts.
3.
Tap
The
132
to return to the idle screen.
icon appears on the status bar, and all line icons change to
.
Basic Call Features
Incoming calls will be rejected automatically, and the touch screen will prompt “n
New Missed Call(s)” (“n” indicates the number of the missed calls. e.g., 1 New
Missed Call(s)).
To configure the DND authorized numbers via web user interface:
1.
Click on Features->Forward & DND.
2.
Select Enabled from the pull-down list of DND Emergency.
3.
Enter the numbers in the DND Authorized Numbers field.
For multiple numbers, enter a comma between every two numbers.
4.
Click Confirm to accept the change.
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User Guide for the SIP-T48G IP Phone
When DND is enabled on the phone, the phone can still receive incoming calls from the
numbers specified in the DND Authorized Numbers field.
Note
DND authorized number is configurable via web user interface only.
You can configure your phone to forward incoming calls to another party through the
static forwarding. You can also forward calls while your phone is ringing; refer to
Dynamic Forwarding.
Static Forwarding
Three types of static forwarding:

Always Forward: Incoming calls are immediately forwarded.

Busy Forward: Incoming calls are immediately forwarded if the phone is busy.

No Answer Forward: Incoming calls are forwarded if not answered after a period
of time.
You can enable/disable call forward for the phone system, or you can customize call
forward for each or all accounts. Two call forward modes:

Phone (default): Call forward is effective for the phone system.

Custom: Call forward can be configured for each or all accounts.
To configure the call forward mode via web user interface:
1.
134
Click on Features->Forward & DND.
Basic Call Features
Note
2.
In the Forward block, mark the desired radio box in the Mode field.
3.
Click Confirm to accept the change.
Call forward mode is configurable via web user interface only.
To enable call forward in phone mode:
1.
Tap
->Features->Call Forward or press
2.
Tap the desired forwarding type.
3.
Depending on your selection:
when the phone is idle.
a) If you tap Always Forward:
1)
Tap the On radio box of the Always Forward field.
2)
Enter the destination number you want to forward all incoming calls to in
the Forward to field.
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User Guide for the SIP-T48G IP Phone
3)
(Optional.) Enter the always forward on code or off code respectively in
the On Code or Off Code field.
b) If you tap Busy Forward:
1)
Tap the On radio box of the Busy Forward field.
2)
Enter the destination number you want to forward incoming calls to when
the phone is busy in the Forward to field.
3)
(Optional.) Enter the busy forward on code or off code respectively in the
On Code or Off Code field.
c) If you tap No Answer Forward:
1)
Tap the On radio box of the No Answer Forward field.
2)
Enter the destination number you want to forward unanswered incoming
calls to in the Forward to field.
3)
Tap the gray box of the After Ring Time field, and then select the desired
ring time to wait before forwarding from the pull-down list.
The default ring time is 12 seconds.
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Basic Call Features
4)
(Optional.) Enter the no answer forward on code or off code respectively
in the On Code or Off Code field.
4.
Tap the Save soft key to accept the change.
The
icon on the idle screen indicates that the call forward is enabled.
To enable call forward in custom mode:
1.
Tap
->Features->Call Forward or press
2.
Tap the desired account.
3.
Tap the desired forwarding type.
4.
Depending on your selection:
when the phone is idle.
a) If you tap Always Forward:
1)
Tap the On radio box of the Always Forward field.
2)
Enter the destination number you want to forward all incoming calls to in
the Forward to field.
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User Guide for the SIP-T48G IP Phone
3)
(Optional.) Enter the always forward on code or off code respectively in
the On Code or Off Code field.
You can also enable always forward for all accounts. Do the following:
1)
Tap the All Lines soft key.
The touch screen prompts “Copy to all lines?”.
2)
Tap OK to accept the change or Cancel to cancel.
b) If you select Busy Forward:
1)
Tap the On radio box of the Busy Forward field.
2)
Enter the destination number you want to forward incoming calls to when
the phone is busy in the Forward to field.
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Basic Call Features
3)
(Optional.) Enter the busy forward on code or off code respectively in the
On Code or Off Code field.
You can also enable busy forward for all accounts. Do the following:
1)
Tap the All Lines soft key.
The touch screen prompts “Copy to all lines?”.
2)
Tap OK to accept the change or Cancel to cancel.
c) If you select No Answer Forward:
1)
Tap the On radio box of the No Answer Forward field.
2)
Enter the destination number you want to forward unanswered incoming
calls to in the Forward to field.
3)
Tap the gray box of the After Ring Time field, and then select the desired
ring time to wait before forwarding from the pull-down list.
The default ring time is 12 seconds.
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User Guide for the SIP-T48G IP Phone
4)
(Optional.) Enter the no answer forward on code or off code respectively
in the On Code or Off Code field.
You can also enable no answer forward for all accounts. Do the following:
1)
Tap the All Lines soft key.
The touch screen prompts “Copy to all lines?”.
2)
5.
140
Tap OK to accept the change or Cancel to cancel.
Tap the Save soft key to accept the change.
Basic Call Features
If you activate call forward for the default account, the associated line icon will
change to
, and the
icon will appear on the status bar.
If you activate call forward for the non-default account, only the associated line icon
will change to
.
Call forward is configurable via web user interface at the path Features->Forward &
DND.
Note
You can also enter the SIP URL or IP address in the Forward to field. For more information
on using the SIP URL or IP address, refer to Placing Calls on page 116.
Call forward is local to the phone, and may be overridden by the server settings. Call
forward on code or off code may be different among servers. For more information,
contact your system administrator.
To configure the forward authorized numbers via web user interface:
1.
Click on Features->Forward & DND.
2.
Select Enabled from the pull-down list of Forward Emergency.
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User Guide for the SIP-T48G IP Phone
3.
Enter the numbers in the Forward Authorized Numbers field.
For multiple numbers, enter a comma between every two numbers.
4.
Click Confirm to accept the change.
When call forward is enabled on the phone, the phone cannot forward incoming calls
from the numbers specified in the Forward Authorized Numbers field.
Note
Forward authorized number is configurable via web user interface only.
To disable call forward in phone mode:
Do one of the following:
-
Press
when the phone is idle.
You can also tap the forward key to disable call forward directly if a forward key is
configured.
-
Tap
->Features->Call Forward.
Tap the desired forwarding type.
Tap the Off radio box.
Tap the Save soft key to accept the change.
To disable call forward in custom mode for a specific account:
1.
Tap
->Features->Call Forward or press
when the phone is idle.
The touch screen displays a list of accounts registered on the phone.
142
2.
Tap the desired account.
3.
Tap he desired forwarding type.
Basic Call Features
4.
Tap the Off radio box.
5.
Tap the Save soft key to accept the change.
Dynamic Forwarding
To forward an incoming call to another party:
1.
When the phone is ringing, tap FWD.
2.
Enter the number you want to forward the incoming call to.
3.
Press
,
, or tap FWD.
The touch screen prompts a call forward message.
Note
When the phone forwards a call, a prompt window will pop up by default, if you want to
disable the feature, contact your system administrator for more information.
You can transfer a call to another party in one of three ways:

Blind Transfer: Transfer a call directly to another party without consulting.

Semi-Attended Transfer: Transfer a call when the target phone is ringing.

Attended Transfer: Transfer a call with prior consulting.
To perform a blind transfer:
1.
Press
or tap the Transfer soft key during a call.
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User Guide for the SIP-T48G IP Phone
2.
Enter the number you want to transfer the call to.
3.
Press
or tap Transfer to complete the transfer.
The call is then connected to the number to which you are transferring.
To perform a semi-attended transfer:
1.
Press
or tap the Transfer soft key during a call.
2.
Do one of the following:
-
Enter the number you want to transfer the call to.
-
Tap the Directory soft key, and then tap All Contacts. Search for the contact
and tap the desired contact to dial out. (Directory should be configured in
advance. Refer to Directory on page 45 for more information.)
-
Tap the History soft key, and then tap the desired list. Tap the desired entry to
dial out.
-
Tap the Directory soft key, and then tap Remote Phone Book. Search for the
contact and tap the desired contact to dial out. (Directory and remote phone
book should be configured in advance. Refer to Directory on page 45 and
Remote Phone Book on page 67 for more information.)
3.
Press
4.
Press
or
to dial out.
or tap Transfer to complete the transfer when receiving ringback.
To perform an attended transfer:
1.
Press
or tap the Transfer soft key during a call.
2.
Do one of the following:
-
Enter the number you want to transfer the call to.
-
Tap the Directory soft key, and then tap All Contacts. Search for the contact
and tap the desired contact to dial out. (Directory should be configured in
advance. Refer to Directory on page 45 for more information.)
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Basic Call Features
-
Tap the History soft key, and then tap the desired list. Tap the desired entry to
dial out.
-
Tap the Directory soft key, and then tap Remote Phone Book. Search for the
contact and tap the desired contact to dial out. (Directory and remote phone
book should be configured in advance. Refer to Directory on page 45 and
Remote Phone Book on page 67 for more information.)
3.
Press
or
to dial out.
4.
After the party answers the call, press
or tap Transfer to complete the transfer.
If you are using a handset, the transfer can be completed by hanging up the handset.
You can enable or disable call waiting on the phone. If call waiting is enabled, you can
receive another call when there is already an active call on the phone. Otherwise,
another incoming call is automatically rejected by the phone with a busy message
when there is an active call on the phone. You can also enable or disable the phone to
play a warning tone when receiving another call.
To configure call waiting via phone user interface:
1.
Tap
->Features->Call Waiting.
2.
Tap the On radio box of the Call Waiting field.
3.
Tap the On radio box of the Play Tone field.
4.
(Optional.) Enter the call waiting on code or off code respectively in the On Code or
Off Code field.
5.
Tap the Save soft key to accept the change or
to cancel.
Call waiting is configurable via web user interface at the path Features->General
Information.
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You can use the SIP-T48G IP phone to create a conference with other two parties using
the phone’s local conference or create a conference with multiple participants which is
called network conference.
Note
Network conference is not available on all servers. For more information, contact your
system administrator.
The SIP-T48G IP phone supports up to 3 parties (including yourself) in a conference call.
This is the default method of conference called Local Conference. You can create a
conference between an active call and a call on hold at any time by tapping the
Conference soft key.
To set up a local conference call:
1.
Place a call to the first party.
2.
When the first party answers the call, tap the Conference soft key to place a new
call.
The active call is placed on hold.
3.
Enter the number of the second party, and then press
,
, or tap
Conference.
4.
When the second party answers the call, tap the Conference soft key again to join
all parties in the conference.
To join two calls in a conference:
1.
Place two calls using two different accounts on the phone (for example, place the
first call using account 1, and then place the second call using account 2).
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Basic Call Features
2.
Tap the desired call for conference and ensure that the call is active (for example,
tap the call on account 1).
3.
Tap the Conference soft key to join the two calls in the conference on the selected
account.
During the conference call, you can do the following actions:
-
Press
or tap the Hold soft key to place the conference call on hold.
-
Tap the Split soft key to split the conference call into two individual calls on hold.
-
Tap
-
Press
to remove the desired party.
to mute the conference call, all other participants can hear each other,
but they cannot hear you.
-
Tap
to mute the party. The muted party can hear everyone, but no one can
hear the muted party.
-
Tap the EndCall soft key to drop the conference call.
You can use network conference feature on the SIP-T48G IP phone to conduct a
conference with multiple participants.
This feature allows you to perform the following:

Join two calls together into a conference call.

Invite another party into an active conference call.
To use this feature, contact your system administrator for the network conference URI in
advance.
To configure network conference via web user interface:
1.
Click on Account->Advanced.
2.
Select the desired account from the pull-down list of Account.
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User Guide for the SIP-T48G IP Phone
3.
Select Network Conference from the pull-down list of Conference Type.
4.
Enter the conference URI (e.g., conference@example.com) in the Conference URI
field.
5.
Note
Click Confirm to accept the change.
Network conference is configurable via web user interface only.
To set up a network conference call:
1.
Place a call to the first party.
2.
Tap the Conference soft key to place a new call.
The active call is placed on hold.
3.
Enter the number of the second party and then press
,
, or tap the Send
soft key.
4.
When the second party answers the call, tap the Conference soft key to add the
second party to the conference.
5.
Tap the Conference soft key to place a new call.
The conference call is placed on hold.
6.
Enter the number of the new party and then press
,
, or tap the Send soft
key.
7.
When the new party answers the call, tap the Conference soft key to add the new
party to the conference.
8.
Repeat steps 5 to 7 until you have added all intended parties.
The procedures to set up a network conference call on specific servers may be different
from introduced above. Contact your system administrator for more information.
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Basic Call Features
You can use call park feature to place a call on hold, and then retrieve the call from
another phone in the system (for example, a phone in another office or conference
room). You can park an active call by tapping the call park key on the phone. If the call
is parked successfully, the response is either a voice prompt confirming that the call was
parked, or a visible prompt on the touch screen.
Note
Call park is not available on all servers. Contact your system administrator for more
information.
To configure a call park key via phone user interface:
1.
Tap DSS Key.
2.
Tap the desired line key.
3.
Tap the gray box of the Type field, and then select Key Event from the pull-down list.
4.
Tap the gray box of the Key Type field, and then select Call Park from the pull-down
list.
5.
Tap the gray box of the Account ID field, and then select the desired line from the
pull-down list.
6.
(Optional.) Enter the string that will appear on the touch screen in the Label field.
7.
Enter the call park code in the Value field.
8.
Tap the Save soft key to accept the change or
to cancel.
Call park key is configurable via web user interface at the path DSSKey->Line Key.
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To use call park:
1.
User on phone A places a call to phone B.
2.
User on phone A wants to take the call in a conference room for privacy, and so
taps the call park key on phone A.
3.
User on phone A walks to an available conference room where the phone is
designated as phone C. The user dials the call park retrieve code to retrieve the
parked call.
The system establishes the call between phone C and B.
Note
The call park code and call park retrieve code are predefined on the system server.
Contact your system administrator for more information.
If the parked call is not retrieved within a period of time assigned by the system, the
phone performing call park will receive a call back.
You can use call pickup to answer someone else’s incoming call on your phone. The
SIP-T48G IP phone supports directed call pickup and group call pickup. Directed call
pickup is used for picking up a call that is ringing at a target phone number. Group call
pickup is used for picking up a call that is ringing at any phone number in a certain
group. The pickup group should be predefined, contact your system administrator for
more information.
You can pick up an incoming call by using DPickup/GPickup. To use call pickup, you
need to configure the call pickup code beforehand on a global or per-line basis via web
user interface. The call pickup code configured on a per-line basis takes precedence
over that configured on a global basis.
Note
If there are many incoming calls at the same time, taping GPickup on the phone will pick
up the call that rings first.
Directed Call Pickup
To enable directed call pickup and configure the directed call pickup code on a global
basis via web user interface:
150
1.
Click on Features->Call Pickup.
2.
Select Enabled from the pull-down list of Directed Call Pickup.
Basic Call Features
3.
Enter the directed call pickup code in the Directed Call Pickup Code field.
4.
Click Confirm to accept the change.
To configure the directed call pickup code on a per-line basis via web user interface:
1.
Click on Account->Advanced.
2.
Select the desired account from the pull-down list of Account.
3.
Enter the directed call pickup code in the Directed Call Pickup Code field.
4.
Click Confirm to accept the change.
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To pick up a call directly:
1.
Pick up the handset, tap the line key or press the Speakerphone key.
The DPickup appears on the on-screen keypad.
2.
Tap DPickup on your phone when the target phone receives an incoming call.
3.
Enter the phone number which is receiving an incoming call.
4.
Tap DPickup again.
The call is answered on your phone.
You can also configure a line key as a directed pickup key via phone user interface or
web user interface. Once configured, you can pick up a call by tapping the directed
pickup key directly. For more information, refer to Line Keys on page 89.
Group Call Pickup
To enable group call pickup and configure the group call pickup code on a global basis
via web user interface:
152
1.
Click on Features->Call Pickup.
2.
Select Enabled from the pull-down list of Group Call Pickup.
Basic Call Features
3.
Enter the group call pickup code in the Group Call Pickup Code field.
4.
Click Confirm to accept the change.
To configure the group call pickup code on a per-line basis via web user interface:
1.
Click on Account->Advanced.
2.
Select the desired account from the pull-down list of Account.
3.
Enter the group call pickup code in the Group Call Pickup Code field.
4.
Click Confirm to accept the change.
To pick up a call in the group:
1.
Pick up the handset, tap the line key or press Speakerphone key.
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User Guide for the SIP-T48G IP Phone
The GPickup appears on the on-screen keypad.
2.
Tap GPickup on your phone when a phone in the group receives an incoming call.
The call is answered on your phone.
You can also configure a line key as a group pickup key via phone user interface or web
user interface. Once configured, you can pick up a call by tapping the group pickup key
directly.
Note
The directed call pickup code and group call pickup code are predefined on the system
server. Contact your system administrator for more information.
You can use anonymous call to block your identity and phone number from appearing
to the called party when you call someone. For example, you want to call to consult
some of the services, but don’t want to be harassed. Anonymous call is configurable on
a per-line basis. You can also configure the phone to send anonymous call on/off code
to the server to activate/deactivate anonymous call on the server side.
Note
Anonymous call is not available on all servers. Contact your system administrator for the
anonymous call on code and off code.
To configure anonymous call via phone user interface:
1.
Tap
->Features->Anonymous.
2.
Tap the desired line.
3.
Tap the On radio box of the Local Anonymous field.
4.
(Optional.) Tap the On Code or Off Code radio box of the Send Anony Code field.
5.
(Optional.) Enter the anonymous call on code and off code respectively in the On
Code and Off Code field.
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Basic Call Features
The phone will send the configured on code or off code depending on your
selection when you enable or disable anonymous call feature on the phone.
6.
Tap the Save soft key to accept the change or
to cancel.
Anonymous call is configurable via web user interface at the path Account->Basic.
To place an anonymous call:
1.
Using the specific line on the phone to place a call to phone B.
The touch screen of phone B prompts an incoming call from anonymity.
You can use anonymous call rejection to reject incoming calls from anonymous callers.
Anonymous call rejection automatically rejects incoming calls from callers who
deliberately block their identities and numbers from being displayed. Anonymous call
rejection is configurable on a per-line basis. You can also configure the phone to send
anonymous call rejection on/off code to the server to activate/deactivate anonymous
call rejection on the server side.
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User Guide for the SIP-T48G IP Phone
To configure anonymous call rejection via phone user interface:
1.
Tap
->Features->Anonymous.
2.
Tap the desired line.
3.
Tap the On radio box of the Anony Rejection field.
4.
(Optional.) Tap the On Code or Off Code radio box of the Send Rejection Code
field.
5.
(Optional.) Enter the anonymous call rejection on code and off code respectively in
the Reject On Code and Reject Off Code field.
The phone will send the configured on code or off code depending on your
selection when you enable or disable local anonymous rejection feature on the
phone.
6.
Tap the Save soft key to accept the change or
to cancel.
Anonymous call rejection is configurable via web user interface at the path
Account->Basic.
If phone B has anonymous call feature enabled and places a call to your phone, the call
will be rejected, and the touch screen of the phone B will display the following:
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Advanced Phone Features
This chapter provides operating instructions for the advanced features of the SIP-T48G IP
phone. Topics include:

Busy Lamp Field (BLF)

BLF List

Call Recording

Hot Desking

Intercom

Multicast Paging

Music on Hold

Automatic Call Distribution (ACD)

Shared Call Appearance (SCA)

Bridged Line Appearance (BLA)

Messages
If you require additional information or assistance with your new phone, contact your
system administrator.
You can use BLF to monitor a specific line for status changes on the phone. For example,
you can configure a BLF key on the phone to monitor the status of a friend’s line (busy or
idle). The BLF key illuminates solid red when the friend’s line is in use.
You can tap a BLF key to dial out the monitored phone number when the monitored line
is idle. You can receive a visual or/and an audio alert (if enabled), and also pick up calls
that are received on the monitored line. For more information, contact your system
administrator.
To configure a BLF key via phone user interface:
1.
Tap DSS Key.
2.
Tap the desired line key.
3.
Tap the gray box of the Type field, and then select BLF from the pull-down list.
4.
Tap the gray box of the Account ID field, and then select the desired line from the
pull-down list.
5.
(Optional.) Enter the string that will appear on the touch screen in the Label field.
6.
Enter the phone number or extension you want to monitor in the Value field.
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User Guide for the SIP-T48G IP Phone
7.
(Optional.) Enter the directed call pickup code in the Extension field.
8.
Tap the Save soft key to accept the change or
to cancel.
BLF key is configurable via web user interface at the path DSSKey->Line key.
You can enable audio alert feature for BLF pickup on the phone. This allows the
monitoring phone to play a warning tone when the monitored line receives an incoming
call. You can also enable visual alert feature for BLF pickup on the phone. This allows the
touch screen of the monitoring phone to display the caller ID when the monitored line
receives an incoming call.
To enable visual and audio alert features via web user interface:
Note
158
1.
Click on Features->Call Pickup.
2.
Select Enabled from the pull-down list of Visual Alert for BLF Pickup.
3.
Select Enabled from the pull-down list of Audio Alert for BLF Pickup.
4.
Click Confirm to accept the change.
Visual and audio alert features are configurable via web user interface only.
Advanced Phone Features
When the monitored line receives an incoming call, the following occurs on your phone:

The phone plays a warning tone (if enabled).

The BLF key icon flashes red.

The caller ID appears on the touch screen (if enabled).
In the following figure, the touch screen shows an incoming call from 1008 on the
monitored line.
Note
If your phone is locked, you cannot use the DPickup, Send, NewCall and Cancel soft keys
until unlocked. For more information, refer to Phone Lock on page 39.
When there is an active call on the IP phone, you can transfer the active call to the
monitored phone number directly by tapping the BLF key. The phone handles the active
call differently depending on the transfer mode via DSS key. For more information on
the transfer mode on DSS key, refer to Transfer in DSS Keys section on page 96.
You can use the BLF List feature to monitor a list of users defined by your system
administrator. For example, your system administrator enables BLF List, and creates a
BLF List URI (e.g., BLFList@example.com) including a list of user1, user2 on the server.
The BLF List keys on the IP phone can present the status of user1 and user2. The key LEDs
illuminate either flashing or solid depending on the status of those users. For more BLF
List key LED indicators, refer to LED Instructions on page 8.
You can use the BLF List keys in the following ways:

When the monitored user is idle, tap the BLF list key to dial out the phone number.

When there is already an active call on the IP phone, you can transfer the active
call to the monitored user by taping the BLF List key. The phone handles the active
call differently depending on the transfer mode on DSS key. For more information
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User Guide for the SIP-T48G IP Phone
on the transfer mode on DSS key, refer to Transfer on page 96.

When the monitored user receives an incoming call, tap the BLF list key to pick up
the call directly. Before picking up an incoming call, ensure that the BLF List Pickup
code has been configured in advance. If the code is not configured, the phone will
place a call to the monitored user instead of picking up the incoming call of the
monitored user when you tap the BLF List key.

When there is a conversation on the monitored user, tap the BLF list key to barge in
and set up a conference call. Before barging in an active call, ensure that the BLF
List Barge In Code has been configured in advance. If the code is not configured,
the phone will place a call to the monitored user instead of barging in an active
call of the monitored user when you tap the BLF List key.

When a call is being parked against the monitored phone, tap the BLF List key to
retrieve the parked call from the monitored user. Before retrieving the parked call,
ensure that the BLF List Retrieve Call Parked Code has been configured in advance.
If the code is not configured, the phone will place a call to the monitored user
instead of retrieving the parked call when you tap the BLF List key.
To configure BLF List settings via web user interface:
1.
Click on Account->Advanced.
2.
Select the desired account from the pull-down list of Account.
3.
Enter the BLF List URI in the BLF List URI field.
4.
(Optional.) Enter the directed pickup code in the BLF List Pickup code field.
5.
(Optional.) Enter the barge-in code in the BLF List Barge In Code field.
6.
(Optional.) Enter the call park retrieve code in the BLF List Retrieve Call Parked
Code field.
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Advanced Phone Features
7.
Note
Click Confirm to accept the change.
For more information on BLF List URI/BLF List Pickup Code/BLF List Barge In Code/BLF List
Retrieve Call Parked Code, contact your system administrator.
According to the response message from the server, the IP phone will automatically
configure the BLF List keys beginning from the first unused DSS key (The default order of
BLF list keys assigned automatically is Line Key->Ext Key). Once any DSS key is seized,
the IP phone will skip to configure the next DSS key.
You can receive a visual or/and an audio alert (if enabled) on your phone when the
monitored user receives an incoming call. For more information, refer to Busy Lamp Field
(BLF) on page 157.
Note
The pickup code is used in the following order of preference:
BLF List Pickup Code (Account->Advanced)>Directed Call Pickup Code
(Account->Advanced)>Directed Call Pickup Code (Features->Call Pickup). If all of them
are not configured, taping the BLF List key will directly call the monitored user when
he/she receives an incoming call. For more information about pickup Code, refer to Call
Pickup on page 150.
You can record calls by tapping a record key on the phone. The SIP-T48G IP phone
supports record and URL record.
Two ways of call recording:
Record: The phone sends a SIP INFO message containing a specific header “Record:

on/off” to trigger a recording.
URL Record: The phone sends an HTTP URL request to trigger a recording. Contact

your system administrator for the predefined URL.
Note
Call record is not available on all servers. Contact your system administrator for more
information.
To configure a record key via phone user interface:
1.
Tap DSS Key.
2.
Tap the desired line key.
3.
Tap the gray box of the Type field, and then select Key Event from the pull-down list.
4.
Tap the gray box of the Key Type field, and then select Record from the pull-down
list.
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User Guide for the SIP-T48G IP Phone
5.
(Optional.) Enter the string that will appear on the touch screen in the Label field.
6.
Tap the Save soft key to accept the change or
to cancel.
To configure a URL record key via phone user interface:
1.
Tap DSS Key.
2.
Tap the desired line key.
3.
Tap the gray box of the Type field, and then select URL Record from the pull-down
list.
4.
(Optional.) Enter the string that will appear on the touch screen in the Label field.
5.
Enter the URL (e.g., http://10.1.2.224/phonerecording.cgi) in the URL Record field.
6.
Tap the Save soft key to accept the change or
to cancel.
Record and URL record keys are configurable via web user interface at the path
DSSKey->Line Key.
The Record and URL Record keys control the recording function, and are available:
162

During an active call

When calls are on hold or muted
Advanced Phone Features

During a blind or attended transfer

During a conference call
The Record and URL Record keys are not available when:

There are no connected calls on your phone

You place a new call
To record a call:
1.
Tap the Record key or URL Record key during a call.
If the recording starts successfully, the recording icon will appear on the touch
screen and the icon of the Record key or URL Record key changes to
2.
.
Tap the Record key or URL Record key again to stop recording.
The recording icon disappears from the touch screen and the icon of the Record key
or URL Record key changes to
.
Recording status indicators you need to know:
Circumstance
Icons on the touch screen
A recording is started
appears on the touch screen
A recording cannot be started
appears for 1 second
A recording cannot be
appears for 1 second, then goes back
stopped
The recording box is full
appears for 1 second
The call cannot be recorded
appears for 1 second
You can listen to the recordings stored on your server system. For example, you can dial
an access code to listen to the recordings.
Note
The way in which you listen to the recordings may be different depending on the server.
Contact your system administrator for more information.
Hot desking originates from the definition of being the temporary physical occupant of
a work station or surface by a particular employee. A primary motivation for hot
desking is cost reduction. This feature is regularly used in places where not all the
employees are in the office at the same time, or not in the office for very long, which
means that actual personal offices would be often vacant, consuming valuable space
and resources.
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You can use hot desking on the SIP-T48G IP phone to log out of existing accounts and
then log into a new account. As a result, many users can share the phone resource at
different times. To use this feature, you need to configure a hot desking key in advance.
Note
Hot desking is not available on all servers. Contact your system administrator for more
information.
To configure a hot desking key via phone user interface:
1.
Tap DSS Key.
2.
Tap the desired line key.
3.
Tap the gray box of the Type field, and then select Key Event from the pull-down list.
4.
Tap the gray box of the Key Type field, and then select Hot Desking from the
pull-down list.
5.
(Optional.) Enter the string that will appear on the touch screen in the Label field.
6.
Tap the Save soft key to accept the change or
to cancel.
Hot desking key is configurable via web user interface at the path DSSKey->Line Key.
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Advanced Phone Features
To use hot desking:
1.
Tap the Hot Desking key when the phone is idle.
The touch screen prompts the following warning:
2.
Tap the OK.
Registration configurations of all accounts on the phone will be cleared
immediately.
The login wizard will be displayed as below:
3.
Enter the login information in each field.
4.
Tap the Save soft key to login or
to cancel.
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User Guide for the SIP-T48G IP Phone
Intercom is a useful feature in an office environment to quickly connect with the operator
or the secretary. You can tap the intercom key to automatically connect with a
preconfigured target extension for outgoing intercom calls, and the target extension will
automatically answer incoming intercom calls by default.
Note
Intercom is not available on all servers. Contact your system administrator for more
information.
To configure an intercom key via phone user interface:
1.
Tap DSS Key.
2.
Tap the desired line key.
3.
Tap the gray box of the Type field, and then select Intercom from the pull-down list.
4.
Tap the gray box of the Account ID field, and then select the desired line from the
pull-down list.
5.
(Optional.) Enter the string that will appear on the touch screen in the Label field.
6.
Enter the target extension number in the Value field.
7.
Tap the Save soft key to accept the change or
to cancel.
Intercom key is configurable via web user interface at the path DSSKey->Line Key.
The SIP-T48G IP phone supports to automatically answer an incoming intercom call by
default. The phone automatically plays a warning tone when it receives an incoming
intercom call. In addition, you can enable the phone to mute the microphone when it
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Advanced Phone Features
automatically answers an incoming intercom call. You can also enable the phone to
automatically answer an incoming intercom call while there is already an active call on
the phone. The active call is then placed on hold.
Intercom features you need to know:
Intercom Feature
Accept Intercom
Intercom Mute
Intercom Tone
Description
Enable or disable the IP phone to automatically
answer an incoming intercom call.
Enable or disable the IP phone’s microphone for
intercom calls.
Enable or disable the IP phone to play a warning
tone when it receives an incoming intercom call.
Enable or disable the IP phone to automatically
Intercom Barge
answer an incoming intercom call while there is
already an active call on the phone.
Accept Intercom
You can enable or disable the phone to automatically answer an incoming intercom call.
If Accept Intercom is enabled, the phone will automatically answer an incoming
intercom call. If Accept Intercom is disabled, the phone will reject incoming intercom
calls and send a busy message to the caller. Accept Intercom is enabled by default.
Note
Your administrator can set a period of delay time before the phone automatically
answers intercom calls. Contact your system administrator for more information.
Intercom Mute
You can mute or un-mute the phone’s microphone for intercom calls automatically. If
Intercom Mute is enabled, the microphone will be muted for intercom calls. If Intercom
Mute is disabled, the microphone will work for intercom calls. Intercom Mute is disabled
by default.
Intercom Tone
You can enable or disable the phone to play a warning tone when receiving an
intercom call. If Intercom Tone is enabled, the phone will play a warning tone before
answering the intercom call. If Intercom Tone is disabled, the phone will automatically
answer the intercom call without warning. Intercom Tone is enabled by default.
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Intercom Barge
You can enable or disable the phone to automatically answer an incoming intercom call
while there is already an active call on the phone. If Intercom Barge is enabled, the
phone will automatically answer the intercom call and place the active call on hold. If
Intercom Barge is disabled, the phone will handle an incoming intercom call like a
waiting call. Intercom Barge is disabled by default.
Note
To enable the phone to receive a new incoming call when it has an active call, make sure
that call waiting feature is enabled on the phone in advance. For more information, refer
to Call Waiting on page 145.
To configure intercom features via phone user interface:
1.
Tap
->Features->Intercom.
2.
Make the desired changes.
3.
Tap the Save soft key to accept the change or
to cancel.
These specific parameters are configurable via web user interface at the path
Features->Intercom.
To place an intercom call when the target phone is idle:
1.
Tap the intercom key when the phone is idle.
The called destination plays a warning tone and automatically answers the call in
the speakerphone mode by default.
2.
168
To end the intercom call, tap the intercom key again or the EndCall soft key.
Advanced Phone Features
You can use multicast paging to quickly and easily broadcast time sensitive
announcements out to people who are listening to a specific multicast group. You can
configure a multicast paging key or a paging list key on the phone, which allows you to
send a Real Time Transport Protocol (RTP) stream to the pre-configured multicast
address(es) without involving SIP signaling. You can configure the phone to receive an
RTP stream from pre-configured multicast listening address(es) without involving SIP
signaling. You can specify up to 10 multicast listening addresses.
To configure a multicast paging key via phone user interface:
1.
Tap DSS Key.
2.
Tap the desired line key.
3.
Tap the gray box of the Type field, and then select Key Event from the pull-down list.
4.
Tap the gray box of the Key Type field, and then select Multicast Paging from the
pull-down list.
5.
(Optional.) Enter the string that will appear on the touch screen in the Label field.
6.
Enter the multicast IP address and port number (e.g., 224.5.6.20:10008) in the Value
field.
The valid multicast IP addresses range from 224.0.0.0 to 239.255.255.255.
7.
Tap the Save soft key to accept the change or
to cancel.
Multicast paging key is configurable via web user interface at the path DSSKey->Line
Key.
To configure a paging list key via phone user interface:
1.
Tap DSS Key.
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User Guide for the SIP-T48G IP Phone
2.
Tap the desired line key.
3.
Tap the gray box of the Type field, and then select Key Event from the pull-down list.
4.
Tap the gray box of the Key Type field, and then select Paging List from the
pull-down list.
5.
(Optional.) Enter the string that will appear on the touch screen in the Label field.
6.
Tap the Save soft key to accept the change or
to cancel.
Paging list key is configurable via web user interface at the path DSSKey->Line Key.
To configure paging list via phone user interface:
1.
Tap the paging list key when the phone is idle.
2.
Tap a desired paging group.
The default tag is Empty if it is not configured before.
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Advanced Phone Features
3.
Tap the Edit soft key.
4.
Enter the multicast IP address and port number (e.g., 224.5.6.20:10008) in the
Address field.
The valid multicast IP addresses range from 224.0.0.0 to 239.255.255.255.
5.
Enter the string that appear on the touch screen in the Label field
6.
Tap the Save soft key to accept the change.
7.
Repeat steps 2 to 6, you can add more paging groups.
Paging list is configurable via web user interface at the path Directory->Multicast IP.
To delete a paging group via phone user interface:
1.
Tap the Paging list key when the phone is idle.
2.
Tap a desired group.
3.
Tap the Delete soft key.
4.
Tap OK to accept the change or Cancel to cancel.
If you want to delete all paging groups, you can tap the Delete All soft key.
You can also configure the phone to use a default codec for sending multicast RTP
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User Guide for the SIP-T48G IP Phone
stream via web user interface.
To configure a default codec for multicast paging via web user interface:
1.
Click on Features->General Information.
2.
Select the desired codec from the pull-down list of Multicast Codec.
The default codec is G722.
3.
Note
Click Confirm to accept the change.
If G722 codec is used for multicast paging, the touch screen will display the icon
indicate that it is providing high definition voice.
to
Default codec for multicast paging is configurable via web user interface only.
You can configure the phone to receive a Real Time Transport Protocol (RTP) stream from
the pre-configured multicast address(es) without involving SIP signaling. You can
specify up to 10 multicast addresses that the phone listens to on the network.
How the phone handles incoming multicast paging calls depends on Paging Barge and
Paging Priority Active parameters configured via web user interface.
Paging Barge
The paging barge parameter defines the priority of the voice call in progress. If the
priority of an incoming multicast paging call is lower than that of the active call, it will be
ignored automatically. If Disabled is selected from the pull-down list of Paging Barge,
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Advanced Phone Features
the voice call in progress will take precedence over all incoming multicast paging calls.
Valid values in the Paging Barge field:
1 to 10: Define the priority of the active call, 1 with the highest priority, 10 with the

lowest.
Disabled: The voice call in progress will take precedence over all incoming paging

calls.
Paging Priority Active
The paging priority active parameter decides how the phone handles incoming
multicast paging calls when there is already a multicast paging call on the phone. If
enabled, the phone will ignore incoming multicast paging calls with lower priorities,
otherwise, the phone will answer incoming multicast paging calls automatically and
place the previous multicast paging call on hold. If disabled, the phone will
automatically ignore all incoming multicast paging calls.
To configure multicast listening addresses via web user interface:
1.
Click on Directory->Multicast IP.
2.
Select the desired value from the pull-down list of Paging Barge.
3.
Select the desired value from the pull-down list of Paging Priority Active.
4.
Enter the multicast IP address(es) and port number (e.g., 224.5.6.20:10008) which
the phone listens to for incoming RTP multicast in the Listening Address field.
5.
Enter the label in the Label field.
Label will appear on the touch screen when receiving the multicast RTP stream.
6.
Note
Click Confirm to accept the change.
The priorities of listening addresses are predefined: 1 with the highest priority, 10 with the
lowest.
Multicast listening addresses are configurable via web user interface only.
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To send RTP stream via a multicast paging key when the receiver’s phone is idle:
1.
Tap the multicast paging key when the phone is idle.
The phone sends RTP to a preconfigured multicast address (IP: Port).
Both the sender’s and receiver’s phones play a warning tone and the receiver
automatically answers the multicast RTP session in the speakerphone mode.
The multicast paging key illuminates solid green.
The following figure shows a multicast RTP session on the phone:
2.
Tap the Hold soft key to place the current multicast RTP session on hold.
The sender’s phone places the multicast RTP session on hold and receiver’s phone
releases the session.
3.
To resume the held multicast RTP session, tap the Resume soft key.
The multicast RTP session is established again.
4.
Note
Tap the EndCall soft key to end the multicast RTP session.
Multicast RTP is one way only from the sender to the multicast address(es) (receiver). For
outgoing RTP multicasts, all other existing calls on the phone will be placed on hold.
To send RTP stream via a paging key list when the receiver’s phone is idle:
1.
174
Tap the paging list key when the phone is idle.
Advanced Phone Features
2.
Tap the desired group.
3.
Tap the Paging soft key to send RTP.
4.
Tap the Hold soft key to place the current multicast RTP session on hold.
The sender’s phone places the multicast RTP session on hold and receiver’s phone
releases the session.
5.
To resume the held multicast RTP session, tap the Resume soft key.
The multicast RTP session is established again.
6.
Tap the EndCall soft key to end the multicast RTP session.
Music on hold (MoH) is the business practice of playing recorded music to fill the silence
that would be heard by the party placed on hold. To use this feature, you should specify
a SIP URI pointing to a Music on Hold Server account. When a call is placed on hold, the
phone will send a SIP INVITE message to the Music on Hold Server account. The Music
on Hold Server account automatically answers the SIP INVITE messages and
immediately plays audio from some source located anywhere (LAN, Internet) to the
held party. Contact your system administrator for the SIP URI.
To configure music on hold server via web user interface:
1.
Click on Account->Advanced.
2.
Select the desired account from the pull-down list of Account.
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User Guide for the SIP-T48G IP Phone
3.
Enter the SIP URI (e.g., sip:moh@sip.com) in the Music Server URI field.
4.
Click Confirm to accept the change.
When you place a call on hold, music will be played to the held party.
Note
For this feature to function, all involved parties cannot use encrypted RTP (SRTP).
Music on hold server is configurable via web user interface only.
ACD is often used in offices for customer service, such as call center. The ACD system
handles large volumes of incoming calls from callers who have no need to talk to a
specific person but who require assistance from any of multiple persons at the earliest
opportunity. ACD on the SIP-T48G IP phone allows the ACD system to distribute large
volumes of incoming calls to the registered ACD users. To use this feature, you should
configure an ACD key in advance. For more information on ACD key icon indicators,
refer to Icon Instructions on page 3.
Note
Make sure ACD is enabled on your IP phone. For more information on enabling ACD,
contact your system administrator.
To configure an ACD key via phone user interface:
176
1.
Tap
->Features->DSS Keys.
2.
Tap the desired DSS key.
Advanced Phone Features
3.
Tap the gray box of the Type field, and then select ACD from the pull-down list.
4.
(Optional.) Enter the string that will appear on the touch screen in the Label field.
5.
Tap the Save soft key to accept the change or
to cancel.
ACD key is configurable via web user interface at the path DSSKey->Line Key.
To log into the ACD system:
1.
Tap the ACD key when the phone is idle.
The touch screen prompts you the following information:
User ID: the identity used to log into the queue.
Password: the password used to log into the queue.
2.
Note
Tap the Login soft key to log in.
Contact your system administrator for the User ID and Password to access the ACD
system.
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User Guide for the SIP-T48G IP Phone
After configuring an ACD key, you can tap the ACD key to log into the ACD system. After
logging in, you are ready to receive calls from the ACD system. You can tap the ACD key
to show your current ACD user status. You can tap the Available/Unavailable soft key to
change your ACD user status. ACD user status synchronizes on both IP phone and ACD
system.
When you set the ACD user status to be available, the ACD key LED illuminates solid
green, and then the server begins distributing calls to your phone.
When you set the ACD user status to be unavailable, the ACD key LED flashes green,
and then the server temporarily stops distributing calls to your phone. To log out of the
ACD system, tap the Logout soft key.
Note
It is recommended you configure no more than one ACD key per phone. At any time, at
most one ACD key can be in progress on your phone.
You can use SCA feature to share an extension which can be registered on two or more
IP phones at the same time. The shared line is indicated by a different line icon.
In the following figure, the first line is private and the second line is shared:
If two phones share a line, an incoming call to this extension will cause both phones to
ring simultaneously. The incoming call can be answered on either phone but not both.
This feature is very useful in the boss and secretary scenario. For example, the secretary
can share the boss's extension on her phone. When there is an incoming call to the
extension of the boss, both the phones of the boss and the secretary will ring
simultaneously. Either the boss or the secretary can answer the call. Calls on the shared
line can be placed on hold, barged in or retrieved from another shared phone.
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Advanced Phone Features
You can configure a primary account on the IP phone and other alternate accounts on
the other IP phones. In a SCA Hybrid Key System scenario, you can automatically assign
multiple DSS keys with Line type for a registered shared line on the phone (If auto
linekeys feature is enabled). For example, party A, party B share the account 4603,
phone A registers the primary account 4603 and assigns line key 1 and line key 2 for the
account 4603, phone B registers the alternate account 4603_1 and assigns line key 1 and
line key 2 for the account 4603_1, phone C registers the account 4604.
To configure the auto linekeys feature via web user interface:
1.
Click on Features-> General Information.
2.
Select Enabled from the pull-down list of Auto LineKeys.
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User Guide for the SIP-T48G IP Phone
If Auto LineKeys is enabled, you can automatically assign multiple DSS keys with
Line type for a registered shared line on the phone.
3.
180
Click Confirm to accept the change.
Advanced Phone Features
To configure the shared line settings and the number of line key on phone A via web
user interface:
1.
Register the primary account 4603.
2.
Click on Advanced, and then select Shared Call Appearance from the pull-down
list of Shared Line.
3.
Enter the desired number in the Number of line key field.
This field appears only if Auto Linekeys is enabled.
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User Guide for the SIP-T48G IP Phone
The default value is 1. In this example, the value is set to 2.
4.
Click Confirm to accept the change.
The phone A will automatically configure the line keys from the first unused DSS key,
according to the configured number in the Number of line key field.
To configure the shared line settings and the number of line key on phone B via web
user interface:
1.
182
Register the alternate account 4603_1.
Advanced Phone Features
(Enter the primary account 4603 in the Register Name field.)
2.
Click on Advanced, and then select Shared Call Appearance from the pull-down
list of Shared Line.
3.
Enter the desired number in the Number of line key field.
This field appears only if Auto Linekeys feature is enabled.
The default value is 1. In this example, the value is set to 2.
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User Guide for the SIP-T48G IP Phone
4.
Click Confirm to accept the change.
The phone B will automatically configure the line keys from the first unused DSS key,
according to the configured number in the Number of line key field.
Configuring private hold soft key or private hold key
Public hold allows any shared line to retrieve the held call. Private hold only allows the
hold party to retrieve the held call. For example, you can retrieve the held call on either
phone A or phone B when you place a call on public hold; you can retrieve the held call
only on phone A when you place a call on private hold on phone A. By default, the
private hold soft key isn’t displayed on the touch screen. You need to configure either
the private hold soft key or a private hold key before you place the call on private hold.
To configure the private hold soft key via web user interface:
1.
Click on Settings->Softkey Layout.
2.
Select Enabled from the pull-down list of Custom Softkey.
3.
Select On Talk from the pull-down list of Call States.
4.
Select Private Hold from the Unselected Softkeys column and then click
The Private Hold appears in the Selected Softkeys column.
5.
Click Confirm to accept the change.
To configure a private hold key via phone user interface:
1.
Tap
->Features->DSS Keys.
2.
Tap the desired DSS key, and then select Key Event from the pull-down list.
3.
Tap the gray box of the Key Type field, and then select Private Hold from the
pull-down list.
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.
Advanced Phone Features
4.
(Optional.) Enter the string that will appear on the touch screen in the Label field.
5.
Tap the Save soft key to accept the change or
to cancel.
Configuring call pull feature
Call pull feature allows users to retrieve an existing call from another shared phone that
is in active or public hold status.
To configure the call pull feature access code via web user interface:
1.
Click on Account->Advanced.
2.
Select the desired account from the pull-down list of Account.
3.
Enter the call pull feature access code (e.g., *11) in the Call Pull Feature Access
Code field.
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User Guide for the SIP-T48G IP Phone
4.
Click Confirm to accept the change.
The phone will dial out “*11” automatically when you tap the CallPull soft key.
This section provides you with detailed information on using the SIP-T48G IP phone in a
SCA Hybrid Key System scenario. In a SCA Hybrid Key System scenario, the status of the
line key icon which associates with a shared line will change. For more information on
line key icon indicators, refer to Icon Instructions on page 3.
You can do the following using the IP phone in a SCA Hybrid Key System scenario:

Placing calls

Answering calls

Placing a call on hold

Retrieving a held call

Barging in an active call

Call Pull
You can have one call or multiple calls on the shared line.
To place a call on the shared line:
Do one of following:
-
Enter the desired number using the keypad when the phone is idle.
Press
,
, or tap Send.
The phone will dial the entered number using the first line key.
-
Tap the line key when the phone is idle to enter the pre-dialing screen.
Enter the desired number using the keypad and then press
,
, or tap
Send.
The phone will dial the entered number using the selected line key.
To place multiple calls on the shared line:
You can have more than one call on the shared line. To place a new call when there is
an active call on the line key 1 of phone A, do one of the following on phone A:
-
Press
or tap the Hold soft key. The original call is placed on hold.
Tap the NewCall soft key to enter the pre-dialing screen.
Enter the desired number using the keypad.
Press
,
, or tap Send.
Phone A will dial the entered number using the line key 2 automatically.
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Advanced Phone Features
-
Tap the line key. The original call is placed on hold.
Enter the desired number using the keypad.
Press
,
, or tap Send.
Phone A will dial the entered number using the selected line key.
You can have one call or multiple calls on the shared line. Incoming calls will be
distributed evenly among the available line keys.
To answer a call on the shared line:
When an incoming call arrives on the shared line, the phone A and phone B will ring
simultaneously, and the icon indicators of the line key 1 on both phone A and phone B
will become
and flash. You can answer the incoming call on either phone A or
phone B but not both.
Do one of the following on phone A or phone B:
-
Tap the line key 1,
,
or tap the Answer soft key on phone A.
The icon indicators of the line key 1 on phone A and phone B will become
and
solid.
-
Tap the line key 1,
,
or tap the Answer soft key on phone B.
The icon indicators of the line key 1 on phone A and phone B will become
and
solid.
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User Guide for the SIP-T48G IP Phone
To answer multiple calls on the shared line:
An incoming call arrives on the shared line when there is an active call on phone A’s line
key 1. The icon indicators of the line key 2 on both phone A and phone B will become
and flash. You can answer the incoming call on either phone A or phone B. The touch
screen of phone A displays the information of the incoming call (e.g., “Incoming call:
4604 Yealink”).
Note
Make sure call waiting feature is enabled on phone A. For more information, refer to Call
Waiting on page 145.
Do one of the following on phone A:
-
Tap the line key 2. Phone B stops ringing.
-
Tap the Answer soft key. Phone B stops ringing.
-
Tap the incoming call item.
Press
or tap the Answer soft key. Phone B stops ringing.
The incoming call is answered and the original call is placed on hold. The icon
indicators of the line key 1 on phone A and phone B will become
and solid
indicating that there is the held call on the line key 1. The icon indicators of the line
key 2 on phone A and phone B will become
active call on the line key 2.
188
and solid indicating that there is an
Advanced Phone Features
You can also answer the call on phone B. Do one of the following on phone B:
-
Tap the line key 2. Phone A stops ringing.
-
Press
or tap the Answer soft key. Phone A stops ringing.
The icon indicators of the line key 2 on phone A and phone B will become
and
solid indicating that there is an active call on the line key 2. Meanwhile, the icon
indicators of the line key 1 phone A and phone B will become
and solid
indicating that there is the held call on the line key 1.
Note
If the number of incoming calls is greater than the configured line keys, the line keys will
be used by sequence circulation.
To place a call on public hold:
1.
Press
or tap the Hold soft key on phone A when party A and party C are
talking.
The icon of line key 1 on phone A and phone B will become
.
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User Guide for the SIP-T48G IP Phone
To place a call on private hold:
1.
Press the PriHold soft key or private hold key on phone A when there is an active
call on the shared line (You may need to press the More soft key to see the PriHold
soft key).
The icon of line key 1 on phone A will become
when the shared line call is
placed on private hold.
The icon of line key 1 on phone B will become
when the shared line call is
placed on private hold.
To retrieve a call placed on public hold:
You can retrieve the public held call on either phone A or phone B.
To retrieve the call on phone A:
1.
Tap
, press
or tap the Resume soft key.
The conversation between phone A and phone C is retrieved.
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Advanced Phone Features
To retrieve the call on phone B:
Do one of the following:
-
Tap
.
-
Long tap the desired line key. The Cancel, CallPull, NewCall and Retrieve soft keys
appear on the touch screen.
Tap the Retrieve soft key to retrieve the call.
The conversation is established between phone B and phone C, phone A disconnects
the call. And the line key icon on phone A and phone B will become
.
To retrieve a call placed on private hold:
The private held call can be only retrieved by the hold party (party A).
Do the following:
1.
Tap
, press
or tap the Resume soft key on phone A.
The conversation between phone A and phone C is retrieved.
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User Guide for the SIP-T48G IP Phone
To interrupt the active call on the shared line:
If phone A has only one active call, do the following:
1.
Long tap the desired line key on phone B.
The Cancel, CallPull, NewCall and Barge In soft keys appear on the touch screen of
phone B.
2.
Tap the Barge In soft key to interrupt the active call of phone A.
Party B will set up a conference call with the other parties in the active call.
3.
Press
-
, tap the Hold soft key or the EndCall soft key.
If any party in the conference call presses
or taps the Hold soft key,
two-way voice can be heard between the remaining parties.
-
If party A or party B taps the EndCall soft key, the remaining parties are still
connected. If the other party (not the shared line party) taps the EndCall soft
key, the conference call is ended.
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Advanced Phone Features
You can also tap the line key with the solid red icon indicator on phone B to set up a
conference call with the other parties in the active call.
If phone A has more than one call, do the following:
1.
Long tap the desired line key on phone B.
The list of calls appears on the touch screen of phone B.
2.
Tap the item to select the active call.
The Cancel, CallPull, NewCall and Barge In soft keys appear when the active call is
highlighted.
3.
Tap the Barge In soft key to interrupt the active call of phone A.
Party B may hear a warning tone and then set up a conference call with the other
parties of the active call.
4.
Press
-
, tap the Hold soft key or the EndCall soft key.
If any party in the conference call presses
, taps the Hold soft key,
two-way voice can be heard between the remaining parties.
-
If party A or party B taps the EndCall soft key, the remaining parties are still
connected. If the other party (not the shared line party) taps the EndCall soft
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User Guide for the SIP-T48G IP Phone
key, the conference call is ended.
Call pull feature allows users to retrieve an existing call from another shared phone that
is in active or hold status. For example, when there is a call between phone A and
phone C, you can use call pull feature on phone B to retrieve this call from phone A.
Then the call is established between phone B and phone C.
To retrieve a call from another shared phone:
If there is an active call between phone A and phone C, do the following:
1.
Long tap the desired line key on phone B.
The Cancel, CallPull, NewCall and Barge In soft keys appear on the touch screen of
phone B.
2.
Tap the CallPull soft key.
The active call has been retrieved from the phone A successfully.
194
Advanced Phone Features
If there is a held call between phone A and phone C, do the following:
1.
Long tap the desired line key on phone B.
The Cancel, CallPull, NewCall and Retrieve soft keys appear on the touch screen of
phone B.
2.
Tap the CallPull soft key.
The held call has been retrieved from the phone A successfully.
BLA allows users to share a SIP line on two or more IP phones. Users can monitor the
specific extension (BLA number) for status changes on each IP phone. To use this feature,
a BLA group should be pre-configured on the server and one of them is specified as a
BLA number. BLA depends on support from a SIP server.
In the following figure, the first line is private and the second line is shared:
Any IP phone can be used to originate or receive calls on the bridged line. An incoming
call to the BLA number can be presented to multiple phones in the group simultaneously.
The incoming call can be answered on any IP phone of the group but not all.
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User Guide for the SIP-T48G IP Phone
You can share a BLA number on two or more phones. For example, phone A registers
the account 14019833020 and assigns BLA number, phone B registers the account
10462190020 and assigns BLA number, phone C registers the account 14755608020.
Phone A and phone B share the BLA number 14084588327.
To register an account and configure BLA feature on phone A via web user interface:
1.
196
Register the account 14019833020.
Advanced Phone Features
2.
Click on Advanced, and then select Draft BLA from the pull-down list of Shared
Line.
3.
Enter the desired number in the BLA Number field.
4.
Click Confirm to accept the change.
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User Guide for the SIP-T48G IP Phone
To register an account and configure BLA feature on phone B via web user interface:
1.
Register the account 10462190020.
2.
Click on Advanced, and then select Draft BLA from the pull-down list of Shared
Line.
3.
198
Enter the desired number in the BLA Number field.
Advanced Phone Features
4.
Click Confirm to accept the change.
This section provides you with detailed information on using the SIP-T48G IP phone in a
BLA scenario. In a BLA scenario, the status of the line key LED which associates with a
bridged line will change. For more information on line key LED indicators, refer to Icon
Instructions on page 3.
You can do the following using the IP phone in a BLA scenario:

Placing calls

Answering calls

Place a call on hold

Retrieving a held call
You can have one call or multiple calls on the bridged line.
To place a call on the bridged line:
Do one of following:
-
Enter the desired number using the keypad when the phone is idle.
Press
,
, or tap Send.
The phone will dial the entered number.
-
Tap the line key when the phone is idle to enter the pre-dialing screen.
Enter the desired number using the keypad and then press
,
, or tap
Send.
The phone will dial the entered number.
To place multiple calls on the bridged line:
You can have more than one call on the bridged line. To place a new call when there is
an active call on phone A, do one of the following on the phone A:
-
Press
or tap the Hold soft key. The original call is placed on hold.
Tap the NewCall soft key to enter the pre-dialing screen.
Enter the desired number using the keypad.
Press
,
, or tap Send.
Phone A will dial the entered number.
-
Tap the line key. The original call is placed on hold.
Enter the desired number using the keypad.
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User Guide for the SIP-T48G IP Phone
Press
,
, or tap Send.
Phone A will dial the entered number.
When the phone C dials the BLA number “14084588327”, an incoming call will arrive on
the bridged line. The phone A and phone B ring simultaneously. You can answer the
incoming call on either phone A or phone B but not both.
Do one of the following on phone A or phone B:
-
Press
,
or tap the Answer soft key on phone A.
Phone B stops ringing. The icon indicator of the line key on the phone A become
and prompts “Talking”. At the meanwhile, the icon indicator of the line key on the
phone B become
and prompts “Talking” indicating that there is an active call
on the phone A.
-
Press
,
or tap the Answer soft key on phone B.
Phone A stops ringing. The icon indicator of the line key on the phone B become
and prompts “Talking”. At the meanwhile, the icon indicator of the line key on the
phone A become
and prompts “Talking” indicating that there is an active call
on the phone B.
To place a call on hold:
1.
Press
or tap the Hold soft key on phone A when party A and party C are
talking.
The icon indicator of the line key on the phone A and phone B become
and
prompt ”Public Hold” when the bridged line call is placed on hold.
If there is a held call between phone A and phone C, you can retrieve a held call on
either phone A or phone B.
To retrieve the held call on phone A:
1.
Tap
, press
or tap the Resume soft key on the phone A.
The conversation between phone A and phone C is retrieved.
To retrieve the held call on phone B:
1.
Tap
on phone B.
The conversation is established between phone B and phone C, phone A
disconnects the call.
200
Advanced Phone Features
You can send and receive text messages using the SIP-T48G IP phone. New text
messages can be indicated both acoustically and visually. When receiving a new text
message, the phone will play a warning tone. The power indicator LED will slow flash
red, and the touch screen will prompt “n New Text Message(s)” (“n” indicates the
number of unread text messages. e.g., 1 New Text Message(s)) and an icon
Note
.
When the phone receives a text message, the text message prompt window will pop up
by default, if you want to disable the feature, contact your system administrator for more
information.
You can store text messages in your phone’s Inbox, Sentbox, Outbox or Draftbox. Each
of the boxes can store up to 100 text messages. If the number of the text messages in
one box is more than 100, the phone will directly delete the oldest text message in the
box.
Note
SMS is not available on all servers. Contact your system administrator for more
information.
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User Guide for the SIP-T48G IP Phone
To read a text message:
Note
1.
Tap
->Message->Text Message->Inbox.
2.
Tap the desired text message to read.
If the phone prompts receiving new text messages, you can also press View to read the
new messages directly.
To send a text message:
1.
Tap
->Message->Text Message->New Message.
2.
Compose the new text message. You can tap the IME soft key to change the input
mode.
3.
Tap the gray box of the From field, and then select the desired account from the
pull-down list.
4.
Enter the number you want to send the message to in the To field.
5.
Tap the Send soft key to send message or
to cancel.
You can also tap the Save soft key to save the text message to the draftbox.
202
Advanced Phone Features
Sending a text message is configurable via web user interface at the path
Features->SMS.
To reply a text message:
1.
Tap
->Message->Text Message->Inbox.
2.
Select the desired message and then press the Reply soft key.
3.
Compose the new text message. You can tap the IME soft key to change the input
mode.
4.
Tap the Send soft key after completing the content.
5.
Check the From and To fields, and then tap the Send soft key.
To delete a text message:
1.
Tap
->Message->Text Message->Inbox (Sentbox, Outbox or Draftbox).
2.
Tap the desired message and then tap the Delete soft key.
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User Guide for the SIP-T48G IP Phone
The touch screen prompts “Delete this message?”.
3.
Tap OK to delete this message or Cancel to cancel.
You can also delete all text messages by tapping the Delete All soft key. For more
information, refer to the above steps.
Note
You can also delete a specific message after retrieving by tapping the Delete soft key.
You can leave voice mails for someone else using the SIP-T48G IP phone. You can also
listen to the voice mails that are stored in a voice mailbox. When receiving a new voice
mail, the phone will play a warning tone. The power indicator LED will slow flash red,
and the touch screen will prompt “n New Voice Mail(s)” (“n” indicates the number of
unread voice messages, e.g., 4 New Voice Mail(s)) and an icon
204
.
Advanced Phone Features
If the voice mail pop-up message box disappears, it won't pop up again unless the user
receives a new voice mail or the user re-registers the account that has unread voice
mail(s).
Note
Voice Mail is not available on all servers. You can configure the phone not to display the
pop-up prompt, contact your system administrator for more information.
The
icon on the status bar has a counter indicating the number of messages you
haven’t heard yet.
To leave a voice mail:
You can leave a voice mail for someone else when he/she is busy or inconvenient to
answer the call. Follow the voice prompt from the system server to leave a voice mail,
and then hang up.
To configure voice mail access codes via phone user interface:
1.
Tap
->Message->Set Voice Mail.
2.
Enter the voice mail access code (e.g., *88) in the desired account field.
You can tap the IME soft key to select the proper input mode.
3.
Note
Tap the Save soft key to accept the change or
to cancel.
Voice mail access codes must be predefined on the system server. Contact your system
administrator for the more information.
To listen to voice mails:
1.
When the touch screen prompts that the phone receives a new voice mail, you can
press
2.
or taps Connect to dial out the voice mail access code.
Follow the voice prompt to listen to your voice mails.
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User Guide for the SIP-T48G IP Phone
You can tap the
icon when the phone is idle to open the dialog box, and then tap
Connect.
Note
Before listening to voice mails, ensure that the voice mail access code has been
configured.
To view the voice mail via phone user interface:
1.
Tap
->Message->View Voice Mail.
The touch screen displays the amount of new and old voice mails.
You can tap the account to listen to voice mails.
The SIP-T48G IP phone supports MWI when receiving a new voice message. If someone
leaves you a voice mail, you will receive a message waiting indicator. MWI will be
indicated in three ways: a warning tone, an indicator message (including a voice mail
icon) on the touch screen, and the power indicator LED slow flashes red. This will be
cleared when you retrieve all voice mails or delete them.
The MWI service is unsolicited for some servers, so the SIP-T48G IP phone only handles
the MWI messages sent from the server. But for other servers, the MWI service is
solicited, so the SIP-T48G IP phone must enable subscription for MWI.
Note
206
MWI service is not available on all servers. Contact your system administrator for more
information.
Advanced Phone Features
The MWI subscription parameters you need to know:
Options
Subscribe for MWI
Description
Enable or disable a subscription for MWI service.
Period of MWI subscription. The IP phone sends a
MWI Subscription Period
refresh SUBSCRIBE request before initial subscription
expires.
Enable or disable a subscription to the voice mail
Subscribe MWI To Voice
number for MWI service.
Mail
To use this feature, you should also configure the
voice mail number.
Note
The phone will send SUBSCRIBE messages for MWI service to the account or the voice
number MWI service depending on the server. Contact your system administrator for
more information.
To configure subscribe for MWI via web user interface:
1.
Click on Account->Advanced.
2.
Select the desired account from the pull-down list of Account.
3.
Select Enabled from the pull-down list of Subscribe for MWI.
4.
Enter the period time in the MWI Subscription Period(Seconds) field.
5.
Click Confirm to accept the change.
The IP phone will subscribe to the account number for MWI service by default.
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User Guide for the SIP-T48G IP Phone
To enable subscribe MWI to voice mail via web user interface:
1.
Click on Account->Advanced.
2.
Select the desired account from the pull-down list of Account.
3.
Select Enabled from the pull-down list of Subscribe for MWI.
4.
Select Enabled from the pull-down list of Subscribe MWI To Voice Mail.
5.
Enter the desired voice mail number in the Voice Mail field.
6.
Click Confirm to accept the change.
The IP phone will subscribe to the voice mail number for MWI service using Subscribe
MWI To Voice Mail.
Note
208
MWI subscription is configurable via web user interface only.
Troubleshooting
This chapter provides general troubleshooting information to help you solve the
problems you might encounter when using your SIP-T48G IP phone.
If you require additional information or assistance with your new phone, contact your
system administrator.
How can I find the basic information of the IP phone?
Press the OK key when the IP phone is idle to check the basic information of the IP phone,
such as IP address and firmware version. For more basic information, refer to Phone
Status on page 20.
How to obtain the MAC address of a phone when the phone is not powered on?
Three ways to obtain the MAC address of a phone:

You can ask your supplier for the shipping information sheet which includes MAC
addresses according to the corresponding PO (Purchase Order).

You can find the MAC address on the label of carton box.

You can also find the MAC address from the phone’s bar code on the back of the
phone.
What is the difference between user name, register name and display name?
Both user name and register name are defined by the server. A user name is used to
identify the account while a register name matched with a password is used for
authentication if required by the server. Display name is the caller ID that will be
displayed on the called party’s touch screen. Server configuration may override the
local configuration.
Why is the touch screen blank?

Ensure that the phone is properly plugged into a functional AC outlet.

Ensure that the output of the power adapter is 5V/2A.

Ensure that the phone is plugged into a socket controlled by a switch that is on.
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User Guide for the SIP-T48G IP Phone

If the phone is plugged into a power strip, try to plug it directly into a wall outlet
instead.

If the phone is powered from PoE, ensure that you use a PoE-compliant switch or
hub.
Why does the phone display "Network unavailable"?

Ensure that the Ethernet cable is plugged into the Internet port on the phone and
the Ethernet cable is not loose.

Ensure that the switch or hub in your network is operational.
Why doesn’t the phone display time and date correctly?
Check if you have configured the phone to obtain the time and date from the SNTP
server automatically. If the phone fails to connect to the SNTP server, contact your
system administrator for more information. You can also configure the time and date
manually. For more information, refer to Time & Date on page 35.
Why does the wallpaper has bad display？
Do one of the following:

Check that the custom image is clear.

Check that the file format of the custom image for the wallpaper is *.jpg, *.png or
*.bmp.

Check that the custom image is neither too large nor too small. The phone will
adjust the image to be able to display it.

Check the picture resolution of the wallpaper. The wallpaper resolution of the
SIP-T48G IP phone is 800*480 pixels.
Why can’t I access web user interface using the default administrator user name and
password (admin/admin)?

It is case-sensitive, ensure the case is correct.

Ensure the password has not been changed.

If the password has been changed, but the computer remembers the old password,
try to clear the browser cache and try again or select another browser to login.
How to change the user password?
To change the user password via web user interface:
1.
210
Click on Security->Password.
Troubleshooting
2.
Select user from the pull-down list of User Type.
3.
Enter the new user password in the New Password field and Confirm Password
field.
4.
Click Confirm to accept the change.
You can also contact your system administrator for help.
Note
If you are logging into the web user interface of the phone with user credentials, you
need to enter the current user password in the Old Password field.
User password is configurable via web user interface only.
Why can’t I receive calls?

Check the SIP registration with your system administrator.

Check that the DND (Do Not Disturb) mode is deactivated on your phone. Refer to
Do Not Disturb (DND) on page 129.

Check that call forward is disabled on the phone. Refer to Call Forward on page
134.

Check whether the caller number is stored in the blacklist directory. Refer to Blacklist
on page 65.
Why does my handset not work?
Check that the handset cord is fully connected to both the handset jack on the phone
and handset. Refer to Phone Installation on page 16.
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User Guide for the SIP-T48G IP Phone
Why does my headset not work?

Check that the headset cord is properly connected to the headset jack on the
phone. Refer to Phone Installation on page 16.

Check that the headset mode is activated. Refer to Headset Use on page 74.

Check that the headset volume is adjusted to an appropriate level. Refer to Volume
on page 42.
Why can’t I get a dial tone?

Check for any loose connections and that the phone has been installed properly.
For the installation instructions, refer to Phone Installation on page 16.

Switch between the Handset, Headset (if present) or Hands-Free Speakerphone to
check whether the dial tone is present for one of the audio modes.
If the dial tone exists on another audio mode, connect a different handset or headset to
isolate the problem.
Why doesn’t the phone ring?
Check the ringer volume on the phone. To adjust the ringer volume setting, press the
Volume key when the phone is on-hook and idle. For more information, refer to Volume
on page 42.
Why does the phone play a tone when there is a call on hold? How to disable it?
When there is a call on hold, the phone will play a hold tone every 30 seconds. Call hold
tone is enabled by default. Call hold tone and the interval of playing a hold tone are
configurable via web user interface only.
To configure call hold tone and call hold tone delay via web user interface:
212
1.
Click on Features->General Information.
2.
Select the desired value from the pull-down list of Play Hold Tone.
Troubleshooting
3.
Enter the desired time in the Play Hold Tone Delay field.
4.
Click Confirm to accept the change.
How to make a call using SRTP?
You can enable SRTP to encrypt the audio stream(s) of phone calls. The parties
participating in the call should enable SRTP on a per-line basis.
To enable SRTP on a per-line basis via web user interface:
1.
Click on Account->Advanced.
2.
Select the desired account from the pull-down list of Account.
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User Guide for the SIP-T48G IP Phone
3.
Select the desired value (Optional or Compulsory) from the pull-down list of RTP
Encryption(SRTP).
4.
Note
Click Confirm to accept the change.
SRTP is not available on all servers. Contact your system administrator for more
information.
SRTP is configurable via web user interface only.
How to export PCAP trace?
We may need you to provide a PCAP trace to help analyze your problem.
To export a PCAP trace via web user interface:
214
1.
Click on Settings->Configuration.
2.
Click Start to begin capturing signal traffic.
3.
Recreate the error to be documented in the trace.
4.
Click Stop to stop the capture.
Troubleshooting
5.
Click Export to open file download window, and then save the file to your local
system.
How to export system log?
We may need you to provide a system log to help analyze your problem.
To export the system log to a local PC via web user interface:
1.
Click on Settings->Configuration.
2.
Select 6 from the pull-down list of System Log Level.
The default system log level is “3”.
3.
Click Confirm to accept the change.
4.
Mark the Local radio box in the Export System Log field.
5.
Reproduce the issue.
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User Guide for the SIP-T48G IP Phone
6.
Click Export to open the file download window, and then save the file to your local
system.
You can also export the system log to a syslog server. Contact your system administrator
for more information.
Note
It is recommended to reset the syslog level to 3 after exporting the system syslog.
How to export all diagnostic files?
We may need you to provide three types of diagnostic files (including PCAP trace,
system log and BIN configuration file) to help analyze your problem. You can export
these files at a time.
To export all diagnostic files via web user interface:
1.
Click on Settings->Configuration.
2.
Click Start to begin capturing signal traffic.
The system log level will be automatically set to 6.
3.
Reproduce the issue.
4.
Click Stop to stop the capture.
The system log level will be reset to 3.
216
Troubleshooting
5.
Click Export to open file download window, and then save diagnostic files to your
local system.
Note
If the issue cannot be reproduced, just directly click Export to export all diagnostic
files.
How to reboot the phone?
To reboot the phone via web user interface:
Note
1.
Click on Settings->Upgrade.
2.
Click Reboot to reboot the IP phone.
Any reboot of the phone may take a few minutes.
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User Guide for the SIP-T48G IP Phone
How to upgrade firmware?
To upgrade firmware via web user interface:
1.
Click on Settings->Upgrade.
2.
Click Browse to locate the required firmware from your local system.
3.
Click Upgrade to upgrade the firmware.
The browser pops up the dialog box “Firmware of the SIP Phone will be updated. It
will take 5 minutes to complete. Please don't power off!”.
4.
Click OK to confirm upgrading.
How to reset the phone?
Reset the phone to factory configurations after you have tried all troubleshooting
suggestions but do not solve the problem.
Three ways to reset the phone:

Full Reset: All configurations and userdata on the phone will be reset.

Config Reset: All configurations (e.g., account, call history) set on the phone will be
reset.

Userdata Reset: All custom data (e.g., ring tone) set on the phone will be reset.
Contact your system administrator before resetting the phone.
To reset the phone via phone user interface:
1.
Tap
->Advanced (default password: admin) ->Reset to Factory.
2.
Tap the gray box of the Reset Option field, and then select the desired reset option
from the pull-down list.
218
Troubleshooting
3.
Tap the Reset key.
The touch screen prompts the following warning:
4.
Tap the OK.
The phone begins resetting.
After reset, the touch screen prompts “Welcome Initializing…Please wait”.
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User Guide for the SIP-T48G IP Phone
The phone will be reset to factory settings sucessfully after startup.
Note
220
Reset of your phone may take a few minutes. Do not power off until the phone has started
up successfully.
Regulatory Notices
Contact your Yealink Authorized Reseller for information about service agreements
applicable to your product.
TO THE FULL EXTENT ALLOWED BY LAW, YEALINK EXCLUDES FOR ITSELFAND ITS
SUPPLIERS ANY LIABILITY, WHETHER BASED IN CONTRACT OR TORT (INCLUDING
NEGLIGENCE), FOR INCIDENTAL, CONSEQUENTIAL, INDIRECT, SPECIAL, OR PUNITIVE
DAMAGES OF ANY KIND, OR FOR LOSS OF REVENUE OR PROFITS, LOSS OF BUSINESS,
LOSS OF INFORMATION OR DATA, OR OTHER FINANCIAL LOSS ARISING OUT OF OR IN
CONNECTION WITH THE SALE,INSTALLATION, MAINTENANCE, USE, PERFORMANCE,
FAILURE, OR INTERRUPTION OF ITS PRODUCTS,EVEN IF YEALINK OR ITS AUTHORIZED
RESELLER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES, AND LIMITS ITS
LIABILITY TO REPAIR, REPLACEMENT, OR REFUND OF THE PURCHASERICE PAID, AT
YEALINK’S OPTION. THIS DISCLAIMER OF LIABILITY FOR DAMAGES WILL NOT BE
AFFECTED IF ANY REMEDY PROVIDED HEREIN SHALL FAIL OF ITS ESSENTIAL PURPOSE.
Save these instructions. Read these safety instructions before use!
The following basic safety precautions should always be followed to reduce the risk of
fire, electrical shock, and other personal injury.
General Requirements

Before you install and use the device, read the safety instructions carefully
and observe the situation during operation.

During the process of storage, transportation, and operation, please always
keep the device dry and clean.

During the process of storage, transportation, and operation, please avoid
collision and crash of the device.

Please do not attempt to dismantle the device by yourself. In case of any
discrepancy, please contact the appointed maintenance center for repair.

Without prior written consent, no organization or individual is permitted to
make any change to the structure or the safety design of the device. Yealink
is under no circumstances liable to consequences or legal issues caused by
such changes.

Please refer to the relevant laws and statutes while using the device. Legal
rights of others should also be respected as well.
Environmental Requirements

Place the device at a well-ventilated place. Do not expose the device under
direct sunlight.

Keep the device dry and free of dust.
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User Guide for the SIP-T48G IP Phone

Place the device on a stable and level platform.

Please do not place heavy objects on the device in case of damageand
deformation caused by the heavy load.

Keep at least 10 cm between the device and the closest object for heat
dissipation.

Do not place the device on or near any inflammable or fire-vulnerable object,
such as rubber-made materials.

Keep the device away from any heat source or bare fire, such as a candle or
an electric heater.

Keep the device away from any household appliance with a strong
magnetic field or electromagnetic field, such as a microwave oven or a
refrigerator.
Operating Requirements

Do not let a child operate the device without guidance.

Do not let a child play with the device or any accessory in case of accidental
swallowing.

Please only use the accessories provided or authorized by the manufacturer.

The power supply of the device must meet the requirements of the input
voltage of the device. Please use the provided surge protection power
socket only.

Before plugging or unplugging any cable, make sure that your hands are
completely dry.

Do not spill liquid of any kind on the product or use the equipment near
water, for example, near a bathtub, washbowl, kitchen sink, wet basement
or near a swimming pool.

Do not tread on, pull, or over-bend any cable in case of malfunction of the
device.

During a thunderstorm, stop using the device and disconnect it from the
power supply. Unplug the power plug and the Asymmetric Digital Subscriber
Line (ADSL) twisted pair (the radio frequency cable) to avoid lightning strike.

If the device is left unused for a rather long time, disconnect it from the
power supply and unplug the power plug.

When there is smoke emitted from the device, or some abnormal noise or
smell, disconnect the device from the power supply, and unplug the power
plug immediately. Contact the specified maintenance center for repair.

Do not insert any object into equipment slots that is not part of the product or
auxiliary product.

Before connecting a cable, connect the grounding cable of the device first.
Do not disconnect the grounding cable until you have disconnected all other
cables.
Cleaning Requirements
222

Before cleaning the device, stop using it and disconnect it from the power
supply.

Use a piece of soft, dry and anti-static cloth to clean the device.

Keep the power plug clean and dry. Using a dirty or wet power plug may
lead to electric shock or other perils.
Appendix A-Time Zones
Time Zone
-11
-10
-9:30
-9
-8
-7
-6
-5
-4:30
-4
-3:30
-3
-2:30
-2
-1
0
+1
+2
+3
+3:30
+4
+4:30
+5
+5:30
+5:45
+6
+6:30
+7
+8
+8:45
+9
Time Zone Name
Samoa
United States-Hawaii-Aleutian, United States-Alaska-Aleutian
French Polynesia
United States-Alaska Time
Canada(Vancouver,Whitehorse), Mexico(Tijuana,Mexicali),
United States-Pacific Time
Canada(Edmonton,Calgary), Mexico(Mazatlan,Chihuahua),
United States-MST no DST, United States-Mountain Time
Canada-Manitoba(Winnipeg), Chile(Easter Islands),
Mexico(Mexico City,Acapulco), United States-Central Time
Bahamas(Nassau), Canada(Montreal,Ottawa,Quebec),
Cuba(Havana), United States-Eastern Time
Venezuela(Caracas)
Canada(Halifax,Saint John), Chile(Santiago),
Paraguay(Asuncion), United Kingdom-Bermuda(Bermuda),
United Kingdom(Falkland Islands), Trinidad&Tobago
Canada-New Foundland(St.Johns)
Argentina(Buenos Aires), Brazil(DST), Brazil(no DST),
Denmark-Greenland(Nuuk)
Newfoundland and Labrador
Brazil(no DST)
Portugal(Azores)
Denmark-Faroe Islands(Torshavn), GMT, Greenland,
Ireland(Dublin), Morocco, Portugal(Lisboa,Porto,Funchal),
Spain-Canary Islands(Las Palmas), United Kingdom(London)
Albania(Tirane), Austria(Vienna), Belgium(Brussels),
Caicos, Chad, Croatia(Zagreb), Czech Republic(Prague),
Denmark(Kopenhagen), France(Paris), Germany(Berlin),
Hungary(Budapest), Italy(Rome), Luxembourg(Luxembourg),
Macedonia(Skopje), Namibia(Windhoek),
Netherlands(Amsterdam), Spain(Madrid)
Estonia(Tallinn), Finland(Helsinki), Gaza Strip(Gaza),
Greece(Athens), Israel(Tel Aviv), Jordan(Amman), Latvia(Riga),
Lebanon(Beirut), Moldova(Kishinev), Romania(Bucharest),
Russia(Kaliningrad), Syria(Damascus), Turkey(Ankara),
Ukraine(Kyiv, Odessa)
East Africa Time, Iraq(Baghdad), Russia(Moscow)
Iran(Teheran)
Armenia(Yerevan), Azerbaijan(Baku), Georgia(Tbilisi),
Kazakhstan(Aktau), Russia(Samara)
Afghanistan(Kabul)
Kazakhstan(Aqtobe), Kyrgyzstan(Bishkek),
Pakistan(Islamabad), Russia(Chelyabinsk)
India(Calcutta)
Nepal(Katmandu)
Kazakhstan(Astana, Almaty), Russia(Novosibirsk,Omsk)
Myanmar(Naypyitaw)
Russia(Krasnoyarsk), Thailand(Bangkok)
Australia(Perth), China(Beijing), Russia(Irkutsk, Ulan-Ude),
Singapore(Singapore)
Eucla
Japan(Tokyo), Korea(Seoul), Russia(Yakutsk,Chita)
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User Guide for the SIP-T48G IP Phone
Time Zone
+9:30
+10
+10:30
+11
+11:30
+12
+12:45
+13
+13:30
+14
224
Time Zone Name
Australia(Adelaide), Australia(Darwin)
Australia(Brisbane), Australia(Hobart),
Australia(Sydney,Melboume,Canberra), Russia(Vladivostok)
Australia(Lord Howe Islands)
New Caledonia(Noumea), Russia(Srednekolymsk Time)
Norfolk Island
New Zealand(Wellington,Auckland), Russia(Kamchatka Time)
New Zealand(Chatham Islands)
Tonga(Nukualofa)
Chatham Islands
Kiribati
Index
A
About This Guide
v
Account Management
101
Account Registration
101
Adding Contacts
51
Adding Groups
47
Administrator Password
38
Advanced Phone Features
157
Anonymous Call
154
Anonymous Call Rejection
155
Answering Calls
118
Appendix A – Time Zones 223
Area Code 108
Audio Settings
42
Audio Issues
212
Auto Answer
122
Auto Redial
123
Automatic Call Distribution (ACD)
176
B
Backlight
33
Basic Call Features
115
Basic Network Settings 21
Blacklist
65
BLF List
159
Block Out
109
Bluetooth
77
Bridged Line Appearance (BLA)
195
Busy Lamp Field (BLF) 157
C
Call Completion
125
Call Forward
134
Call Mute
127
Call History Management
70
Call Hold/Resume
128
Call Issues
211
Call Park
149
Call Pickup
150
Call Recording
161
Call Transfer
143
Call Waiting
145
CE Mark Warning
vi
Configuring an Access URL
67
Configuring BLA Feature on the IP
Phone
196
Configuring SCA Feature on the IP
Phone
179
Conference
146
Contact Management
45
Contrast
34
Customizing Your Phone
31
D
Declaration of Conformity
vi
Deleting Contacts
56
Deleting Groups
56
Dial-now
106
Dial Plan
104
Directory
45
Display Issues
209
Do Not Disturb (DND)
129
Documentation
11
Dual Headset
76
DSS Keys
89
E
Editing Contacts
55
Editing Groups
55
Emergency Number
110
Ending Calls 120
Entering Data and Editing Fields
27
G
General Issues
209
General Settings
31
Getting Started
13
H
Hardware Component Instructions
1
Headset Prior
75
Headset Use 74
Headset & Handset Issues
211
Headset Mode
Activation/Deactivation
75
Hotline
112
Hot Desking
163
I
Icon Instructions
3
Importing/Exporting Contact lists
63
In This Guide
v
Incoming Intercom Calls
166
Intercom
166
K
Key as Send
39
L
Language
34
LED Instructions
8
Limitation of Liability
221
225
User Guide for the SIP-T48G IP Phone
Line Keys
89
Live Dialpad
111
Local Conference
146
Local Directory
47
Log Issues
214
Short Message Service (SMS)
201
Summary of Changes
v
System Customizations
74
T
M
Message Waiting Indicator (MWI)
206
Messages
201
Multicast Paging
169
Multiple Line Keys per Account
103
Music on Hold
175
N
Network Conference
147
P
Packaging Contents
13
Password Issues
210
Phone Initialization
19
Phone Installation
16
Phone Lock
39
Phone Status
20
Phone User Interface
8
Placing Calls
116
Placing Calls to Contacts
Programable Keys
99
U
User Interfaces
8
Using BLA Features on the IP Phone
199
Using Intercom
168
Using Multicast Paging
174
Using SCA Features on the IP Phone
186
V
Voice Mail
204
Volume
42
W
59
O
Outgoing Intercom Calls 166
Overview 1
Optional Accessories
14
R
Reboot & Upgrade & Reset Issues
217
Recent Call In Dialing
120
ReCall
126
Receiving RTP Stream
172
Redialing Numbers 120
Registration
24
Regulatory Notices 221
Remote Phone Book
67
Replace Rule
105
Ring Tones
43
S
Safety Instructions
221
Search Source List in Dialing
61
Searching for Contacts
60
Sending RTP Stream
169
Service Agreements
221
Shared Call Appearance (SCA)
178
226
Table of Contents
ix
Touch Screen Display
24
Time & Date 35
Troubleshooting
209
Warranty
vi
Wallpaper
31
Web User Interface
WEEE Warning
vii
Wi-Fi
84
9